introduction to the non-scaling electron model rob edgecock cclrc rutherford appleton laboratory for...
DESCRIPTION
EMMA EMMA Scaled version of muon accelerator Flexible enough to learn about proton, carbon Parameters: - electrons - 10 to 20 MeV - 42 cells, doublet lattice - 37cm cell length - ~16m circumference - RF every other cell - 1.3GHz, TESLA frequency - magnets ~ 5cm x 2.5cm More details in next two talks!TRANSCRIPT
Introduction to the Non-Scaling Introduction to the Non-Scaling Electron ModelElectron Model
Rob Edgecock Rob Edgecock CCLRC Rutherford Appleton LaboratoryCCLRC Rutherford Appleton Laboratory
For the EMMA CollaborationFor the EMMA Collaboration
• Motivation• Basic EMMA parameters• Location• Collaboration• Introduction to next two talks
MotivationMotivationEMMAEMMA
• Much interest in non-scaling FFAGs over last 1-2yrs• For example:
- baseline accelerator in Study 2a- proton drivers 1.5-GeV
Booster
400-MeV DTL
28-GeV AGS
HI Tandem
0.18 GeV H ‾ Achromat
0.18 GeV H ‾ Linac
10 GeV, 50 Hz, N = 5, FFAGwith 1013 protons per bunch
3 GeV, 50 Hz, h = 5, RCS(1 at 50 Hz, or 2 at 25 Hz)- proton and carbon therapy
• Non-scaling FFAGs have three unique features:- huge/tiny momentum compaction -
asynchronous acceleration - multi-resonance crossings• Incomplete understanding hampering further designs• Must build one!
EMMA!
EMMAEMMAEMMAEMMA
• Scaled version of muon accelerator• Flexible enough to learn about proton, carbon• Parameters:
- electrons - 10 to 20 MeV - 42 cells, doublet lattice - 37cm cell length - ~16m circumference - RF every other cell -
1.3GHz, TESLA frequency - magnets ~ 5cm x 2.5cm• More details in next two talks!
LocationLocationEMMAEMMA
Need somewhere with flexible injector:
- variable energy- variable bunch structure- ~1.3GHz
Experimental hallInfrastructure
EMMA
CollaborationCollaborationEMMAEMMA
• Proposal for part funding to FP6 NEST• Collaboration of 14 institutes signed:
- CCLRC - CEA Saclay- CERN - Grenoble -
Koc - Lancaster (Cockcroft) - Leeds - Liverpool (Cockcroft) - Rostock - Uppsala - BNL - FNAL - Kyoto
- TRIUMF• Other UK PP interested: Adams, Brunel• Industry: IBA, HP Faraday/e2v, SigmaPhi• Medical: MRC, Ion Beams Network, Grenoble, Leeds• PPARC Industrial Liaison, CCLRC “spinning-out”
ConclusionsConclusionsEMMAEMMA
• Considerable recent activity on non-scaling FFAGs: - Neutrino Factory - Proton drivers - Medical applications• Others possible• Scaling + non-scaling FFAGs paradigm shift in
accel. technology• Further non-scaling development needs EMMA• Collaboration formed, location found; funding next• Next two talks:
Eberhard – beam dynamics, lattice, performanceCarol – status of hardware development