Radiation Therapy, Hadron Therapy

7/29/2019 Radiation Therapy, Hadron Therapy

1/13

EMMA,

BASROC,

Hadron Therapy

and ADSRs

Roger Barlow

STFC Cockcroft Review

Feb 11th 2009


2/13

EMMA

Worlds first non-scaling FFAG underconstruction

84 magnets, 19 RF cavities. Accelerate

electrons from 10 to 20 MeV in 16turns

Funded through Basic Technology

scheme + FP7 EucardBeing built here.

On the tour later


3/13

Vision and

Reality


4/13

EMMA - completion

Almost halfway through 4 yearprogramme

Components ordered. Many (magnets,

cavities, vacuum) arrived and beingchecked out and preassembled onto

girders.

Design of injection/extraction systemschallenging but now complete.

On track to start commissioning

November 2009


5/13

EMMA - operations

Commissioning 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 withdifferent emphases

First proposal

by Scott Berg

Need to co-exist with ALICE

Need to plan / budget for

running EMMA as research

machine


6/13

nsFFAG advantages:

Superior to rapid cycling synchrotron and / orisochronous cyclotron from some applications

DC magnets cheap, simple

Very rapid acceleration time High currents (frequency+duty cycle)

Amazingly generous acceptance

Good dynamic range (factor 4-5 in

momentum) Round beam pipe, reasonable diameter

Essential for muon collider/ neutrino factory


7/13

BASROC

British Accelerator Science Radiation andOncology Consortium

Aim: hadron therapy in the UK using an

nsFFAGMembers: accelerator physicists, medical

physicists, clinicians, industry includingmany from Cockcroft and from John Adams

Institute, from Churchill and Clatterbridgehospitals

Arrange meetings, workshops, co-operate ingrant applications


8/13

First BASROC project, successfulapplication to Basic Technology

schem

CONFORM

Roger Barlow

Neil Bliss

EMMA: prove nsFFAG conceptand get experience

Rob Edgecock

Neil Bliss

PAMELA: design a hadron therapysystem using the nsFFAG

Ken Peach

Ian Gardner

Applications : find other possibleuses and build links with user

communities

Karen Kirkby

Bob Cywinski


9/13

PAMELA

Design a medical nsFFAG acceleratorfor 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


10/13

Applications

Cell dosimetry (Surrey) to validateproton/hadron deposition as method

for killing tumour cells

Next generation dedicated muonsource for SR (Huddersfield, at

Cockcroft)

ADSRs


11/13

ADSRs

Energy Amplifier (and similar) concepthas been around a long time why no

progress?

Accelerator is weak point: ~10 mA at ~1GeV with veryhigh reliability

nsFFAG could be the answer:

simple(=reliable), high current,relativistic energy


12/13

ThorEA

Workshops on FFAG/ADSR were popularADSR08 followed on from FFAG08 atManchester.

Evolved into ThorEA research association:more workshops and co-operative grant bids.www.thorea.org

Mix of institutes and disciplines, research andindustry

Grants from

EPSRC Leeds+Manchester EPSRC Cambridge

STFC PNPAS Manchester+Huddersfield
http://www.thorea.org/http://www.thorea.org/


13/13

Where next

After EMMA next step is protonmachine (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.

Radiation Therapy, Hadron Therapy

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