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Transcript of Mitglied der Helmholtz-Gemeinschaft Petersburg Nuclear Physics Institute, Russia Storage cells for...
Mitg
lied
de
r H
elm
hol
tz-G
em
ein
sch
aft
Petersburg Nuclear Physics Institute Russia
Storage cells for internal experiments
with Atomic Beam Sourceat the COSY storage ring
by Kirill Grigoryev
Institut fuumlr Kernphysik Forschungszentrum Juumllich Germany
Petersburg Nuclear Physics Institute Gatchina Russia
14092011
2
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell
Proposed by W Haeberli2nd International Symposium On Polarization Phenomena Basel 1966
Cyclotronbeam
ABS beam
3
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell
The first cell Deuteron VEPP-3 PINTEX IUCF-Cooler
HERMES DESY ANKE COSY
4
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
COSY ndash COoler SYnchrotron
bull internal experiments ndash with the circulating beam bull external experiments ndash with the extracted beam
p p d dwith momenta up to 37 GeVc
5
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Spectrometer ANKE
ANKE at COSY
Targetsbull Solid stripbull Cluster jetbull Polarized gas cell ( polarized gas jet )
Magnetsbull D2 ndash spectrometer magnetbull D1 D3 ndash beam bending magnets
Detector systemsbull Positive amp Negativebull Forward amp Backwardbull Spectator Detectors
6
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Polarized Internal gas Target (PIT)
Lamb-shift polarimeter (LSP) foronline polarization measurements
Storage cell to increase target densityAtomic Beam Source (ABS)
Target gas Hydrogen or Deuterium
Beam intensity (2 HFS) 8 ∙ 1016 ats
ABS beam size σ = 285 plusmn 042 mm
Hydrogen polarization PZ = 089 plusmn 001
PZ = - 096 plusmn 001
Target density at ANKE jet ~ 15 middot 1011 atcm2
cell ~ 21 middot 1013 atcm2
talk by M Mikirtychyants15 September 2011 talk by R Engels
13 September 2011
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
2
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell
Proposed by W Haeberli2nd International Symposium On Polarization Phenomena Basel 1966
Cyclotronbeam
ABS beam
3
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell
The first cell Deuteron VEPP-3 PINTEX IUCF-Cooler
HERMES DESY ANKE COSY
4
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
COSY ndash COoler SYnchrotron
bull internal experiments ndash with the circulating beam bull external experiments ndash with the extracted beam
p p d dwith momenta up to 37 GeVc
5
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Spectrometer ANKE
ANKE at COSY
Targetsbull Solid stripbull Cluster jetbull Polarized gas cell ( polarized gas jet )
Magnetsbull D2 ndash spectrometer magnetbull D1 D3 ndash beam bending magnets
Detector systemsbull Positive amp Negativebull Forward amp Backwardbull Spectator Detectors
6
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Polarized Internal gas Target (PIT)
Lamb-shift polarimeter (LSP) foronline polarization measurements
Storage cell to increase target densityAtomic Beam Source (ABS)
Target gas Hydrogen or Deuterium
Beam intensity (2 HFS) 8 ∙ 1016 ats
ABS beam size σ = 285 plusmn 042 mm
Hydrogen polarization PZ = 089 plusmn 001
PZ = - 096 plusmn 001
Target density at ANKE jet ~ 15 middot 1011 atcm2
cell ~ 21 middot 1013 atcm2
talk by M Mikirtychyants15 September 2011 talk by R Engels
13 September 2011
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
3
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell
The first cell Deuteron VEPP-3 PINTEX IUCF-Cooler
HERMES DESY ANKE COSY
4
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
COSY ndash COoler SYnchrotron
bull internal experiments ndash with the circulating beam bull external experiments ndash with the extracted beam
p p d dwith momenta up to 37 GeVc
5
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Spectrometer ANKE
ANKE at COSY
Targetsbull Solid stripbull Cluster jetbull Polarized gas cell ( polarized gas jet )
Magnetsbull D2 ndash spectrometer magnetbull D1 D3 ndash beam bending magnets
Detector systemsbull Positive amp Negativebull Forward amp Backwardbull Spectator Detectors
6
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Polarized Internal gas Target (PIT)
Lamb-shift polarimeter (LSP) foronline polarization measurements
Storage cell to increase target densityAtomic Beam Source (ABS)
Target gas Hydrogen or Deuterium
Beam intensity (2 HFS) 8 ∙ 1016 ats
ABS beam size σ = 285 plusmn 042 mm
Hydrogen polarization PZ = 089 plusmn 001
PZ = - 096 plusmn 001
Target density at ANKE jet ~ 15 middot 1011 atcm2
cell ~ 21 middot 1013 atcm2
talk by M Mikirtychyants15 September 2011 talk by R Engels
13 September 2011
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
4
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
COSY ndash COoler SYnchrotron
bull internal experiments ndash with the circulating beam bull external experiments ndash with the extracted beam
p p d dwith momenta up to 37 GeVc
5
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Spectrometer ANKE
ANKE at COSY
Targetsbull Solid stripbull Cluster jetbull Polarized gas cell ( polarized gas jet )
Magnetsbull D2 ndash spectrometer magnetbull D1 D3 ndash beam bending magnets
Detector systemsbull Positive amp Negativebull Forward amp Backwardbull Spectator Detectors
6
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Polarized Internal gas Target (PIT)
Lamb-shift polarimeter (LSP) foronline polarization measurements
Storage cell to increase target densityAtomic Beam Source (ABS)
Target gas Hydrogen or Deuterium
Beam intensity (2 HFS) 8 ∙ 1016 ats
ABS beam size σ = 285 plusmn 042 mm
Hydrogen polarization PZ = 089 plusmn 001
PZ = - 096 plusmn 001
Target density at ANKE jet ~ 15 middot 1011 atcm2
cell ~ 21 middot 1013 atcm2
talk by M Mikirtychyants15 September 2011 talk by R Engels
13 September 2011
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
5
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Spectrometer ANKE
ANKE at COSY
Targetsbull Solid stripbull Cluster jetbull Polarized gas cell ( polarized gas jet )
Magnetsbull D2 ndash spectrometer magnetbull D1 D3 ndash beam bending magnets
Detector systemsbull Positive amp Negativebull Forward amp Backwardbull Spectator Detectors
6
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Polarized Internal gas Target (PIT)
Lamb-shift polarimeter (LSP) foronline polarization measurements
Storage cell to increase target densityAtomic Beam Source (ABS)
Target gas Hydrogen or Deuterium
Beam intensity (2 HFS) 8 ∙ 1016 ats
ABS beam size σ = 285 plusmn 042 mm
Hydrogen polarization PZ = 089 plusmn 001
PZ = - 096 plusmn 001
Target density at ANKE jet ~ 15 middot 1011 atcm2
cell ~ 21 middot 1013 atcm2
talk by M Mikirtychyants15 September 2011 talk by R Engels
13 September 2011
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
6
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Polarized Internal gas Target (PIT)
Lamb-shift polarimeter (LSP) foronline polarization measurements
Storage cell to increase target densityAtomic Beam Source (ABS)
Target gas Hydrogen or Deuterium
Beam intensity (2 HFS) 8 ∙ 1016 ats
ABS beam size σ = 285 plusmn 042 mm
Hydrogen polarization PZ = 089 plusmn 001
PZ = - 096 plusmn 001
Target density at ANKE jet ~ 15 middot 1011 atcm2
cell ~ 21 middot 1013 atcm2
talk by M Mikirtychyants15 September 2011 talk by R Engels
13 September 2011
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
7
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Development of the storage cells
for internal experimentswith Atomic Beam Source
at ANKE COSY
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
8
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Beam profile measurements setup
XY-table Vacuum chamber
Frame with diaphragms or a special diaphragm support
COSYbeam
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
9
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement at injection
-25 -20 -15 -10 -5 0 5 10 15 20 25
0
1
2
3
4
5
6
7
8
9
10
Nu
mb
er
of
the
pa
rtic
les
in t
he
rin
g
x 1
010
X [mm]
962 plusmn 153)1010
144 plusmn 009
758 plusmn 012
target OFF fit
-125 -100 -75 -50 -25 00 25 50 75 100 125
0
1
2
3
4
5
6
7
8
9
10
Y [mm]
Num
ber
of th
e pa
rtic
les
in th
e rin
g x
10
10
target OFF fit
(959 plusmn 101)1010
196 plusmn 004
368 plusmn 006
X [mm]
2y
2y
0
y
0 2
)y(exp1Ndy)y()y(N
y
Scraper
F Hinterberger and D Prasuhn NIM A 279 (1989) 413K Potter Beam profiles Yellow Report CERN 85-19 pp301-317
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
10
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Measurement on flattop (265GeV)
Transverse fixed storage cell dimensions are 15 x 20 mm2
Transverse openable storage cell dimensions are 15 x 12 mm2
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
11
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cooling procedures at COSY
At injection energy
Stacking injection
bull 28 stacks with 2s electron cooling bull acceleration to 600 MeV after 1 minute bull maximum cooling energy lt 100 MeV
On the flattop
Stochastic cooling
bull Minimum energy is cooling is 831MeV
Cooling off
Cooling on
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
12
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First double pol experiment (2007)
Storage cell amp support
bull storage cell size ndash 15 x 20 x 390 mm3
bull 25 μm thin Al foil (9995 Al)
+ 5 μm Teflon coating
bull high target density
bull unpolarized gas feeding system
LSP below the target chamber
bull online measurement of the
ABS beam polarization
Silicon tracking telescope (STT)
bull measurement of spectator protons
nearby the storage cell center
(10 mm away from the cell wall)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
13
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Achievements in 2007
Stacking injection
120 injectionswith 10 s e-cooling
0 20 50Time min
Acceleration withoutgas in the storage cell
Switching on the gasto feed the storage cell
Flat top
30 min to haveabout 23 duty time
00E+00
10E+09
20E+09
30E+09
40E+09
50E+09
60E+09
70E+09
80E+09
8 12 16 20 24 28 32 36 40 44
Number of particles
Time min
~7 109 polarized deuteronsXY - distribution of the
particle trajectories
cellcell
Y - distribution of theparticle trajectories
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
14
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
H2 PIT ANKE status 2007
In 2007 commissioning of the Polarized Internal hydrogen gas
Target at COSY was completed successfully
The first 5 weeks production run with hydrogen PITwas performed in October 2009 (Exp 1721)
Another 7 weeks of data taking with hydrogen PITin May 2011 (Exp 205)
Polarized target density in the cell dt ~ 2 1013 atcm2
COSY-beam N ~ 7 109 d
Luminosity in the experiment L ~ 25 1029 s-1cm-2
Hydrogen polarization in the cell Qy = 075 plusmn 006
Deuteron COSY-beam polarization Pz ~ 051 plusmn 004
rarr
RESULTS
REngels - PSTP rsquo07 proceedingsAIP Conf Proc 980 161 (2008)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
15
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
PIT ANKE in 2009
Fall 2009 beamtime at ANKE with polarized hydrogen source intensity- 8 middot 1016 atstarget density - 134 middot 1013 atcm2
expected density - 144 middot 1013 atcm2 (~7 more)
Storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
16
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Storage cell for ANKE
not openable storage cell for ANKE experiments
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
17
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
New storage cell
New experiments requires higher density
of the polarized H2 D2 target
Loosing intensity on the cell walls
Loosing time with stacking injection
Loosing density with fixed storage cell
ANKE needs an openable storage cell
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
18
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (1)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
19
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (2)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
20
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Cell dimensions optimization (3)
100 ~ 134 middot 1013 atcm2
328 ~ 440 middot 1013 atcm2
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
21
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Target chamber and 4 STT
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
22
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell and 2 STT
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
23
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable cell
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
24
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
25
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Openable storage cell for ANKE
The opening mechanism was slightly
shifted from its original positionand the storage cell stop moving
at the end of the machine development
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
26
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Conclusion
Fixed storage cell configurationdimensions 15x20x370 (140+230) mm3
material 25μm Al + 5μm Teflon
Atomic hydrogen target density - 134 middot 1013 atcm2
Openable storage cell configurationdimensions 11x11x390 (190+200) mm3
material 25μm Al + 5μm Teflon
Expected atomic hydrogen target - 47 middot 1013 atcm2
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
27
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
spare
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)
28
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
First exp with storage cell (2006)
target thickness ~ 21 1013 cm-2
luminosity ~ 1029 cm-2s-1
Target ndash storage cellwith unpolarized ABS beam
cell region D2 region
target thickness ~ 1013 cm-2
Hydrogen in HFS 1 only
Target ndash storage cellwith (un)polarized ABS beam
target thickness ~ 15 1011 cm-2
AB
S-je
t de
nsit
y c
m-3
Target ndash ABS jetwith unpolarized Hydrogen
D2 regionABS-jet region
29
Petersburg Nuclear Physics Institute Russia
140911 Kirill Grigoryev ( PNPI amp FZJ )
Magnetic field along the COSY
and PIT beams was measured
at different D2 currents
(from stand-by to max)