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Transcript of Sources and Beam Lines of Canadian Light Source Emil Hallin Canadian Light Source (material...
Sources and Beam Lines of Canadian Light Source
Emil Hallin
Canadian Light Source
(material organized and presented by D.T. Jiang)
First Phase CLS Beamlines
7 beam lines are funded and approved by the CLS Facility Advisory Committee
• (Facility Diagnostic Line #1: BM, visible light)
• Far IR (BM)• Mid IR Spectromicroscopy (BM)• Soft X-ray Spectromicroscopy (Elliptical
Undulator)• SGM (Undulator)• VLS-PGM (Undulator)• Protein Crystallography (Small Gap in-
vacuum U)• Hard X-ray microXAFS (Wiggler,
Ec=10.7keV)
Main Hall Floor plan
Mezzanine Level
Canadian Light SourceMezzanine Floor Elevation106.00 (+6.000m)
Shielding RoofFloor Elevation103.650 (+3.650m)
Expansion Zone - Beamlines
Lab Reserve
Office Reserve
Offices & Labs
High Resolution Far IR Spectroscopy
• PI: Bob McKellar: [email protected]
• Wavelength range: 10-200 m, 0.006-0.13 eV, 50-1000 cm-1
• Resolution: < 0.001 cm-1
• Endstation:
– High resolution Fourier Transform spectrometer
– Sensitive FIR detectors; liquid He cooled
– Gas Phase work:• Coolable long-path cell
• Multi-pass electric discharge cell
• High temperature absorption cell
• Supersonic jet expansion chamber
– High pressure: diamond anvil cell, focusing optics, bench & alignment tools
– Surface & interface studies: UHV chamber, sample preparation and manipulation, 100 m spot size
Mid IR Spectromicroscopy
• Mike Jackson: [email protected]
• Wavelength: 1.5-15 m, 0.08-0.8 eV, 700-6000 cm-1
• Spatial resolution: < 5 m
IR Beamlines
First Mirror Concept
02B1.1 Mid IR Schematic
02B1.1 Mid IR Floor Layout
01B1.1 Far IR Schematic
01B1.1 Far IR Floor Layout
Brightness 100 mA
1011
1012
1013
1014
1015
1016
1017
Bri
ghtn
ess
P
hoto
n/s-
0.1%
bw-1
00m
A-m
m2 -sr
1 10 100 1000
Wavelength (micrometer)
BB 1475'K CLS 58 mrad ALS 10 mrad NSLS 40 mrad SRC 15 mrad
Soft X-ray Spectromicroscopy
• PI Adam Hitchcock: [email protected]
• Wavelength: 6-60 Angstrom, 250-1900 eV
• Insertion device: EPU (AppleII, ESRF termination)
• Infinity corrected entrance slitless PGM with vertical dispersion plane
• Optics: grating (SX700 style) & zone plate
• Resolution: 3000 or better
• Endstation: STXM + PEEM
04ID-104B1-1
02B2-1
01B2-1
02B1-1
02B2-2
02ID-102B1-2
03ID-103B1-1
03B2-1
04B2-1
05B1-1
05B2-1
06ID-1
06B1-1
06B2-1
07ID-1
07B1-1
07B2-1
08ID-108B1-1
08B2-109ID-109B1-1
09B2-1
10ID-110B1-1
10B2-1
11ID-111B1-1
12B2-1
11ID-2
05ID-1
/ 07ID-2
/ 08ID-2
/ 09ID-2
/ 10ID-2
/ 06ID-2
/ 05ID-2
12m~22.7m~131 deg
*16.2 (15.0)
177o
177o
5
1.5
6
M1
M2 G(1-3)PGM
6o
STXM3
exit slit
3
3 M4 PEEM
1PEEM
177o
6o
exit slit
1.5M3 STXM
M3 PEEM
EPU
Feature XES
SM Optical Layout
Variable polarization: arbitrary linear 150-2000eV, circular- 100-1000eV
Infinity corrected PGM: STXM at long arm branch (preserved brightness),
PEEM (exchangeable) on short (preserve flux)
Nominal energy resolving power 3000, may be increased till 7000
Intensity on sample: STXM-108ph/s at 40nm, PEEM-1012ph/s in 40
Stable operation even for CLS 2005 e-beam parameters
SM Optical Description
SGM and VLS PGM
• PI T.K. Sham: [email protected]
• SGM Wavelengths: 200 – 1900 eV
• PGM Wavelengths: 5.5 – 250 eV
• SGM Resolution: 3000
• PGM Resolution: 10000
• Optics: grating monochromator
• Endstations: UHV
• Capabilities: photoemission, XAFS
• Both preliminary design reports are complete
Insertion Devices
•SGM- 44 mm PPM device ~1.2 m long•PGM- 185 mm PPM device ~1.8 m long •1.25 mrad total canting between devices •Preliminary designs for both devices complete
Protein Crystallography
• PI Louis Delbaere: [email protected]
• Wavelengths: 1.9 – 0.68 Angstrom, 6.5 – 18 keV
• Resolution: 1.6 x 104 using Si(220)
• Typical Crystal size: 20 – 50 m
• Design goal: flux of 1013 photons/sec into a 50 x 100 m area
• Design will be modeled after beamlines at SBC-CAT and SER-CAT (APS). Preliminary design is almost complete.
Protein Crystallography Beamline Layout
(Based on the Design of SER-CAT/APS)
Small Gap Undulator Brilliance
Per =4.5 cm, N=26 (L=1.19m), B0=0.843T, Kmax=3.54
Micro-XAFS
Superconducting Wiggler Parameters:= 0.033 m Magnet Period Length
N = 35.5 Number of PeriodsB = 1.9 T Magnetic FieldK = 5.91 K Parameter
Front End Aperture: 1 mrad (H) x 0.24 mrad (V) Ray-tracing shows that the XAFS focus is ~1050 horizontal (FWHM) x ~257 vertical (FWHM) in size. The Kirkpatrick-Baez mirror pair reduces this down to ~[14-19]horizontal (FWHM) x [6-9] vertical (FWHM), using bent elliptical cylinders.
PI De-Tong Jiang: [email protected]
Wiggler Brilliance
DTJ Note: This is from the first hybrid design concept, total powerSR there would have been 23 kW. Gave up and switched toSuperconducting design. The new design is at least another factorof 2 better yet half the total SR power. Smaller SR horizontal fan ofcourse.
Flux at Sample (Shadow tracing)
Photon Energy (keV)
Photon Flux (photons/second) @ -probe Focus:[14-19]horizontal (FWHM) x [6-9] vertical (FWHM)
5 1.21 x 1013
10 1.94 x 1013
15 1.61 x 1013
20 9.12 x 1012
30 2.36 x 1011
40 1.02 x 107
Micro-XAFS photon flux
-probe photon flux into 5 x 5 spot at focus
1.E+05
1.E+06
1.E+07
1.E+08
1.E+09
1.E+10
1.E+11
1.E+12
1.E+13
0 10000 20000 30000 40000
Photon Energy (eV)
Ph
oto
n F
lux
(p
ho
ton
s/s
ec
on
d)
Summary of CLS BL Status
•First 7 lines scheduled operation time: Jan. 2004 •Preliminary designs for most of the first 7 lines are complete
•Tendering process has been started on beamline and endstationInstrumentation
•Phase I Insertion device preliminary designs are completed
•Front ends conceptual design completed