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Introduction to the Non-Scaling Electron Model

Introduction to the Non-Scaling Electron Model. Rob Edgecock CCLRC Rutherford Appleton Laboratory For the EMMA Collaboration. Motivation Basic EMMA parameters Location Collaboration Introduction to next two talks. EMMA. 0.18 GeV H ‾ Linac.

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Introduction to the Non-Scaling Electron Model

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  1. Introduction to the Non-Scaling Electron Model Rob Edgecock CCLRC Rutherford Appleton Laboratory For the EMMA Collaboration • Motivation • Basic EMMA parameters • Location • Collaboration • Introduction to next two talks

  2. EMMA 0.18 GeV H ‾ Linac 0.18 GeV H ‾ Achromat 3 GeV, 50 Hz, h = 5, RCS (1 at 50 Hz, or 2 at 25 Hz) 10 GeV, 50 Hz, N = 5, FFAG with 1013 protons per bunch 1.5-GeV Booster 28-GeV AGS 400-MeV DTL HI Tandem Motivation • Much interest in non-scaling FFAGs over last 1-2yrs • For example: - baseline accelerator in Study 2a - proton drivers - 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!

  3. 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!

  4. EMMA EMMA Location Need somewhere with flexible injector: - variable energy - variable bunch structure - ~1.3GHz Experimental hall Infrastructure

  5. EMMA Collaboration • 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”

  6. EMMA Conclusions • 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, performance Carol – status of hardware development

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