Status of the EURISOL Design Study and Plans for FP7 Peter Butler University of Liverpool.
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Transcript of Status of the EURISOL Design Study and Plans for FP7 Peter Butler University of Liverpool.
Status of the EURISOL Design Study and Plans for FP7
Peter Butler
University of Liverpool
TABLE 1). Participants in EURISOL Design Study
Participant Country Participant Country
GANIL (coordinator)
France Inst. Physics Vilnius Lithuania
CNRS/IN2P3 France Warsaw University Poland
INFN Italy Inst. Phys. Bratislava Slovakia
CERN Europe U. Liverpool United Kingdom
U. C. Louvain Belgium GSI Darmstadt Germany
CEA France U. Santiago Spain
NIPNE Romania CCLRC Daresbury United Kingdom
U. Jyväskylä Finland Paul Scherrer Institute Switzerland
L.M.U. München
Germany Inst. Phys. Latvia Latvia
FZ Jülich Germany Stockholm. U. MSL Sweden
20 Participants
Topical areas and tasks of the EURISOL Design Study
Topical Area Tasks Lead Institution
Management Management GANIL
Accelerators Driver acceleratorPost Accelerator
Superconducting cavity prototyping
INFNGANILIN2P3
Targets Liquid Hg ConverterDirect targets
High power fission target
CERNCERNINFN
Physics, beams and safety Safety and radioprotectionBeam PreparationBeam Intensities
Physics and Instrumentation
CEAU. Jyväskylä
GSIU. Liverpool
Beta Beams Beta Beam Conceptual Design Study CERN
12 Tasks
The EURISOL Road Map
• Vigorous scientific exploitation of current ISOL facilities : EXCYT, Louvain-la-Neuve, REX-ISOLDE, SPIRAL
• Construction of intermediate generation facilities: SPIRAL2, HIE-ISOLDE
• Design and prototyping of the most specific and challenging parts of EURISOL in the framework of the Design Study EURISOL-DS.
Ionsources
1 GeV/qH-, H+,
3He++
>200 MeV/qD+, A/q=2
Chargebreeder
Low-resolutionmass-selector
UCx
target
1+ ionsource
n-generator
20-150 MeV/u (for 132Sn)
To low-energy areas
Secondaryfragmentation
target
4-MWtargetstation
High-resolutionmass-selector
Bunching RFQ
To medium-energy experimental areas
H-
H+, D+,3He++
9 - 60 MeV/u 2-20 MeV/u
To high-energyexperimental areas
RFQs
Chargeselector
100-kW direct
target stationSchematic Layout for EURISOL facility
The Main Challenges
• Design a 5MW; 1GeV proton driver with additional capability of 200 AMeV deuterons and A/Q=2 Heavy Ions; build and test prototypes of the cavities.
• Design a liquid Hg converter which will accept 5 MW of beam power.
• Design a UCx target which will make the most efficient use of the neutrons produced.
• Evaluate the safety constraints of the above set up.• Design an efficient multi-user beam distribution system.• Design a superconducting HI LINAC capable of accelerating
132Sn up to 150 AMeV• Investigate technologies for the instrumentation of the future• Provide a conceptual study for a beta-beam neutrino facility.
Recent Management Accomplishments
• Submission of Second Annual Report on March 15. Only minor comments from EU.
• Successful Mid-Term Review on April 24 with Project Officer Christian Kurrer
• Spin off of the EURISOL user group; chaired by Angela Bonnacorso
• Organization of joint EURISOL-EURONS town meeting in Helsinki; Sept. 17-21
• Start of Site Study chaired by Alan Shotter
Date Time Event
Mon 17
All Day EURISOL-EURONS Town Meeting Talks
Tue 18 All Day EURISOL-EURONS Town Meeting Talks
Early evening
Poster Session & Aperitifs
Evening Town Meeting Dinner
Wed 19
Morning News from NuPECC
Future Activities in Nuclear Structure Physics in Europe
Afternoon Future Activities in Nuclear Structure Physics in Europe
Thu 20 Morning EURONS PCC Meeting EURISOL IAP Meeting EURISOL Task Meetings
Afternoon EURISOL Coordination Board Meeting
Fri 21 Morning EURISOL Management Board Meeting
EURISOL-EURONS town meeting, Helsinki, Sept. 17-21
Reference MMW Target Station
Hg converter and secondary fission targets
Hg loop with window8 UCX targets40x6x3 cm
Problems : Diffusion-Effusion TimeIon Sources
Beam
Hg flow
UC fission target
Ionsource
containmentBeO
reflectorwindow
CERN - INFN
Baseline Neutron converterOptimized ANSYS CFD analyses of
optimized liquid mercury neutron converter of SNS (neutron spallation source) type
The top view shows the converter with mercury flow guides to improve window cooling and avoid backflow in the converter
The middle view shows the temperature distribution in the window which is well below thresholds for irradiated material
The bottom view shows the temperature distribution of the circulating mercury which is well below the boiling point of mercury
CERN
Windowless « curtain » converter
IPUL – CERN - PSI
Beam
HgLamina flow of Hg
“MAFF” type solution for UC targets
Cyril Kharoua, Yacine Kadi and task 2
Fission Target Tube
Hg Proton to Neutron
converter
Hg inlet
Hg outlet
CERN - MUNICH
Driver: New baseline scheme with extended capabilities
• 2 injection lines for H,D, He and A/q=2 ions• magnetic stripping at 1 GeV of up to 100 kW of the H- beam to H0
(spilled beam intensity controlled by adjusting B)• beam splitting by bending of H- with a magnetic dipole• stripping of H0 to H+ by means of a stripper foil• H- to MMW target and H+ to 100kW targets
H-,D-
H+,D+, 3He+
+
RFQ176 MHz
HWR176 MHz
3-SPOKE 352 MHz
Elliptical704 MHz
4 MWH-
100 kWH+, 3He2+
1.5 Me
V/u
60 MeV
/q
140 M
eV/q
1 GeV
/q
B stripper
foil stripper>200 MeV/q
D, A/q=2
=0.047=0.03=0.09=0.15
=0.65 =0.78
10 36 31 63 97
INFN
EURISOL Physics
EURISOL in FP7
• Baseline Plan: Lobby for EURISOL to be on ESFRI list in 2009 and apply for preparatory construction phase at next call in 2010.
• Question: Is this approach still valid when taking into account the delays in the construction of SPIRAL2 ?
• We envisage proposing a continuation of the DS supported by the funding agencies in the framework of NUPNET
• In order to continue developing the EURISOL concept: LOIs for EURISOL-NET and JRA on ISOL targets in FP7 I3.
EURISOL-NET
• 24 Participants including all the main DS participants• to allow the European laboratories that can
conceivably host EURISOL to network with each other, with the funding agencies via NUPNET, and with the user community;
• to encourage the exchange of know-how on technical & scientific developments in European ISOL facilities (Louvain-la-Neuve, REX-HIE-ISOLDE, SPIRAL-SPIRAL2 and EXCYT);
• to support the EURISOL User Group and to continuously develop the scientific case for EURISOL.
FINIS
OLD:
Temperature distribution in MMW target
• Acceptable power
densities in the Hg.
Flow pattern not
optimised; maximum
temperature ~260 ºC.
• Acceptable maximum
temperature in the
beam window (~350
ºC).
• Large temperature
gradient in the
window, inducing
mechanical stresses
above the acceptance
limits.
Power density (W/cm3/MW of beam)
PROBLEMS NOW
SOLVED
New 1 GeV/q beam splitters• magnetic stripping at 1 GeV of up to 100 kW of the H- beam to H0
• The main H- beam transport is not perturbed by the symmetric wiggler
• beam splitting by bending of H- with a magnetic dipole
• stripping of H0 to H+ by means of a stripper foil
• H- to target 1 and H+ to target 2(3,4).
• The spilled beam intensity can be controlled by adjusting the field strength of the magnetic stripper.
= 0.03 = 0.78
Ionsources
RFQ176 MHz
HWRs176MHz
Elliptical ISCL704 MHz
1 GeV/qH-, H+, 3He++
1.5 MeV/u
100 keV
60 MeV/q 140 MeV/q
>200 MeV/qD+, A/q=2
Chargebreeder
Low-resolutionmass-selector
UCx
target
1+ ionsource
n-generator
= 0.065= 0.14= 0.27= 0.385
QWRISCL
88 MHz
3 QWRs ISCL
88 MHz
8 HWRsISCL
176 MHz
SpokeISCL
264 MHz
20-150 MeV/u (for 132Sn)
To low-energy areas
Secondaryfragmentatio
ntarget
Schematic Layout for EURISOL facility
One of severaltarget stations
= 0.047
3-spoke ISCL 325 MHz
High-resolution mass-selector
Bunching RFQ
To medium-energy experimental areas
= 0.65
Elliptical ISCL704 MHz
= 0.09, = 0.15
H-
H+, D+,3He++
9.3- 62.5 MeV/u 2.1-19.9 MeV/u
To high-energyexperimental areas
RFQs
Chargeselector