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Sheehy, S.L.

Paper Title Page
MOPEA022 PAMELA: Lattice Solution for a Medical C6+ Therapy Facility 115
 
  • S.L. Sheehy, K.J. Peach, H. Witte, T. Yokoi
    JAI, Oxford
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
 
 

PAMELA (Particle Accelerator for MEdicaL Applications) employs novel non-scaling Fixed Field Alternating Gradient (NS-FFAG) technology in the development of a proton and C6+ particle therapy facility. One of the challenges of this design is the acceleration of high energy C6+ in a lattice which enables high flexibility and reliability for treatments, yet remains minimal in size and complexity. Discussed here is the Carbon 6+ lattice solution in terms of both design and performance.

 
MOPEA023 Engaging Schools and the Public with Accelerator Physics 118
 
  • S.L. Sheehy
    JAI, Oxford
 
 

Accelerator physics is often viewed as a difficult subject to communicate to schools and the public. The "Accelerate!" project, initiated in the UK in 2008, engages audiences with accelerator physics through a 45-minute live, interactive demonstration show, using basic physics demonstrations to explain the physics of particle accelerators and what they are used for. Feedback has been overwhelmingly positive from all areas, and demand for the show is very high, with over 3000 students involved in the first year of running. The program is also contributing to the science communication skills of physics graduate students. I discuss how to portray basic accelerator concepts through easy to access demonstrations and initial results of audience evaluation of the show.

 
MOPEA021 PAMELA Overview and Status 112
 
  • K.J. Peach, J.H. Cobb, S.L. Sheehy, H. Witte, T. Yokoi
    JAI, Oxford
  • M. Aslaninejad, M.J. Easton, J. Pasternak
    Imperial College of Science and Technology, Department of Physics, London
  • R.J. Barlow, H.L. Owen, S.C. Tygier
    UMAN, Manchester
  • C.D. Beard, P.A. McIntosh, S.M. Pattalwar, S.L. Smith, S.I. Tzenov
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • N. Bliss, T.J. Jones, J. Strachan
    STFC/DL, Daresbury, Warrington, Cheshire
  • T.R. Edgecock, J.K. Pozimski
    STFC/RAL, Chilton, Didcot, Oxon
  • R.J.L. Fenning, A. Khan
    Brunel University, Middlesex
  • I.S.K. Gardner, D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • M.A. Hill
    GIROB, Oxford
  • C. Johnstone
    Fermilab, Batavia
  • B. Jones, B. Vojnovic
    Gray Institute for Radiation Oncology and Biology, Oxford
  • R. Seviour
    Cockcroft Institute, Lancaster University, Lancaster
 
 

The status of PAMELA (Particle Accelerator for MEdicaL Applications) ' an accelerator for proton and light ion therapy using a non-scaling FFAG (ns-FFAG) accelerator ' is reviewed and discussed.

 
MOPEC043 Error Study of a Novel Non-linear, Nonscaling FFAG 555
 
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • S.L. Sheehy
    JAI, Oxford
 
 

A novel nonlinear, nonscaling FFAG ring has been designed for proton and ion acceleration [1]. It can be used for proton and carbon therapy as well as a proton driver for various facilities such as a high intensity neutrino factory. The machine has novel features including variable energy extraction and a high repetition rate of about 1 kHz. Taking as an example the PAMELA proton ring, under study at the John Adams Institute in Oxford, we present results of an error study. A calculation of alignment tolerance is made, in which the effects of translational misalignments of the triplet magnets are included. The effect of misalignments on the dynamic aperture of the machine is investigated.


[1] S. L. Sheehy, K. J. Peach, H. Witte, D. J. Kelliher and S. Machida, Phys. Rev. ST Accel. Beams, 13 (2010) 040101

 
THPD027 Orbit Correction in a non-scaling FFAG 4334
 
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • S.L. Sheehy
    JAI, Oxford
 
 

EMMA - the Electron Model of Many Applications - is to be built at the STFC Daresbury Laboratory in the UK and will be the first non-scaling FFAG ever constructed. The purpose of EMMA is to study beam dynamics in such an accelerator. The EMMA orbit correction scheme must deal with two characteristics of a non-scaling FFAG: i.e. the lack of a well defined reference orbit and the variation with momentum of the phase advance between lattice elements. In this study we present a novel orbit correction scheme that avoids the former problem by instead aiming to maximise both the symmetry of the orbit and the physical aperture of the beam. The latter problem is dealt with by optimising the corrector strengths over the energy range.

 
THPEC090 The EMMA Non-scaling FFAG 4266
 
  • T.R. Edgecock
    STFC/RAL, Chilton, Didcot, Oxon
  • C.D. Beard, J.A. Clarke, S.A. Griffiths, C. Hill, S.P. Jamison, J.K. Jones, A. Kalinin, K.B. Marinov, N. Marks, P.A. McIntosh, B.D. Muratori, J.F. Orrett, Y.M. Saveliev, B.J.A. Shepherd, R.J. Smith, S.L. Smith, S.I. Tzenov, A.E. Wheelhouse
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • J.S. Berg
    BNL, Upton, Long Island, New York
  • N. Bliss, B.G. Martlew, C.J. White
    STFC/DL, Daresbury, Warrington, Cheshire
  • M.K. Craddock
    UBC & TRIUMF, Vancouver, British Columbia
  • J.L. Crisp, C. Johnstone
    Fermilab, Batavia
  • Y. Giboudot
    Brunel University, Middlesex
  • E. Keil
    CERN, Geneva
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • S.R. Koscielniak
    TRIUMF, Vancouver
  • F. Méot
    CEA, Gif-sur-Yvette
  • J. Pasternak
    Imperial College of Science and Technology, Department of Physics, London
  • S.L. Sheehy, T. Yokoi
    JAI, Oxford
 
 

The Electron Model for Many Applications (EMMA) will be the World's first non-scaling FFAG and is under construction at the STFC Daresbury Laboratory in the UK. Construction is due for completion in March 2010 and will be followed by commissioning with beam and a detailed experimental programme to study the functioning of this type of accelerator. This paper will give an overview of the motivation for the project and describe the EMMA design and hardware. The first results from commissioning will be presented in a separate paper.