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EMMA, EMMA, BASROC,BASROC,Hadron Therapy Hadron Therapy and ADSRsand ADSRs
Roger BarlowSTFC Cockcroft ReviewFeb 11th 2009
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EMMA EMMA World’s first non-scaling FFAG
under construction84 magnets, 19 RF cavities.
Accelerate electrons from 10 to 20 MeV in 16 turns
Funded through ‘Basic Technology’ scheme + FP7 Eucard
Being built here.On the tour later
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Vision andVision andRealityReality
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EMMA - completionEMMA - completionAlmost halfway through 4 year
programmeComponents ordered. Many (magnets,
cavities, vacuum) arrived and being checked out and preassembled onto girders.
Design of injection/extraction systems challenging but now complete.
On track to start commissioning November 2009
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EMMA - operationsEMMA - operationsCommissioning 12 months
(nominal). Much to learn about new type of accelerator
Baseline configuration ❑Single energy injection and extraction
❑ Min and max energy run ❑ Lattice tuning ❑ Map tune and time of flight ❑ Accelerate single bunch ❑ Map longitudinal phase space ❑ Vary RF parameters and map
longitudinally ❑ Map transverse phase space
Additional configurations ❑ Vary time of flight
minimum on baseline ❑ Vary tune ❑ High efficiency lattice ❑ Repeat baseline
activities, possibly with different emphases
First proposal by Scott Berg
Need to co-exist with ALICENeed to plan / budget for running EMMA as research machine
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nsFFAG advantages:nsFFAG advantages:
Superior to rapid cycling synchrotron and / or isochronous cyclotron from some applications
DC magnets – cheap, simpleVery rapid acceleration timeHigh currents (frequency+duty cycle)‘Amazingly generous’ acceptanceGood dynamic range (factor 4-5 in
momentum)Round beam pipe, reasonable diameterEssential for muon collider/ neutrino factory
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BASROCBASROC
British Accelerator Science Radiation and Oncology Consortium
Aim: hadron therapy in the UK using an nsFFAG
Members: accelerator physicists, medical physicists, clinicians, industry… including many from Cockcroft and from John Adams Institute, from Churchill and Clatterbridge hospitals
Arrange meetings, workshops, co-operate in grant applications
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First BASROC project, successful application to ‘Basic Technology’ schem
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PAMELAPAMELADesign a medical nsFFAG
accelerator for hadron therapy, at the level where it can be proposed to the NHS/MRC
Pool of people from Oxford, Lancaster, Cockcroft etc: machine designers+magnets+RF+clinical input
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ApplicationsApplicationsCell dosimetry (Surrey) to
validate proton/hadron deposition as method for killing tumour cells
Next generation dedicated muon source for μSR (Huddersfield, at Cockcroft)
ADSRs…
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ADSRsADSRsEnergy Amplifier (and similar)
concept has been around a long time – why no progress?
Accelerator is weak point: ~10 mA at ~1 GeV with very high reliability
nsFFAG could be the answer: simple(=reliable), high current, relativistic energy…
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ThorEAThorEAWorkshops on FFAG/ADSR were popular –
ADSR08 followed on from FFAG08 at Manchester.
Evolved into ThorEA research association: more workshops and co-operative grant bids. www.thorea.org
Mix of institutes and disciplines, research and industry
Grants fromEPSRC – Leeds+ManchesterEPSRC – CambridgeSTFC PNPAS – Manchester+Huddersfield
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Where nextWhere nextAfter EMMA next step is proton
machine (to include variable RF frequency)
Energy? Current? Cost?Research machine or prototype?
Clinical or ADSR or …?Where? Daresbury? Harwell?
Somewhere else?We now need to address these
questions.