Non-scaling FFAGs in UKNon-scaling FFAGs in UKEMMAEMMA

• Requirement for (at least) one non-scaling FFAG clear: - multi-resonance crossings - huge/tiny momentum compaction - asynchronous acceleration

• Original idea: build electron model EMMA:- Model of muon accelerators from US Study 2a -

Sufficient flexibility for detailed studies

• Baseline design done

• Selected lattice: - 10 to 20 MeV - 42 cells, doublet lattice- 37cm cell length - ~16m circumference - RF

every other cell - 1.3GHz, TESLA frequency

• Specification of hardware started

Non-Scaling Electron ModelNon-Scaling Electron ModelEMMAEMMA

EMMAEMMA

LocationLocationEMMAEMMA

Need somewhere with flexible injector:

- variable energy- variable bunch structure- ~1.3GHz

Experimental hall

Infrastructure

Energy Recovery Linac Prototype at Daresbury

LaboratoryEMMA

FundingFundingEMMAEMMA

• Possible sources of funding for EMMA identified:PPARC – unlikely, has already funded MICE Basic Technology Fund UK Gov Spending Review Europe – tried and failed CCLRC

• BT, SR and CCLRC need generic (i.e. non-PP) project

• Campaign for hadron therapy support undertaken

• Too successful! See next……..

Proton MachineProton MachineEMMAEMMA

• New Dept of Radio Oncology forming in Oxford

• Has £3M and can get 2x more for “right” machine:- protons- >40 MeV required; ~100 MeV desirable -

must fit in new building being built - carbon interesting if reasonable energy & possible

• Very interested in non-scaling FFAGs- not interested in cyclotrons, synchrotrons, etc

• Machine should be hadron therapy prototype in 2 ways:- study of therapy using mice (hence >40 MeV) -

demonstration of use of non-scaling FFAGs

Latest UK PlanLatest UK PlanEMMAEMMA

• Build both EMMA and proton machine!

• “Independent” funding routes:proton: Medical Research Council &

Cancer Research UKEMMA: UK Basic Technology Fund/CCLRC

• Link together in BT proposal

• Emphasis still on hadron therapy

• Complementarities: proton: hadron therapy prototype; low beta EMMA: detailed study of non-scaling optics; model of NF accelerators training machine;

high beta

Next Steps - EMMANext Steps - EMMAEMMAEMMA

• Need to understand tracking results:- Are Francois and Shinji seeing the same effect - If

so, is there a problem with trans. acceptance - If so, how do we fix it

• Preparation for BT proposal:- Deadline around April 2006- Need demonstration of feasibility from tracking -

Need complete layout, including injection, extr. - Need diagnostics

• Need reasonable cost estimate: - better RF cost (underway) - better magnet cost - injection and extraction cost - diagnostics cost

- etc!!!

Next Steps – Proton MachineNext Steps – Proton MachineEMMAEMMA

• Needs a name! Two candidates so far:FAMOUS - FFAG Accelerators for Medical and Other UsesPROMETHEUS – PROton Medical THErapy USes

• Need to write proposal to access funding:- timescale ~< 1 year- demonstrate advantages of non-scaling FFAGs for hadron therapy -

demonstrate feasibility of proton prototype

• Need at least one lattice this week:- Linear or non-linear?- Doublet, FODO, triplet, pumplet? -

Number of cells? - Number of turns? - RF: possibility of using FINEMET?

• Need 6D tracking

• Need to identify R&D required, especially magnets & RF