• H. Witte, J.H. Cobb, T. Yokoi
  OXFORDphysics, Oxford, Oxon
• K.J. Peach, S.L. Sheehy
  JAI, Oxford

Funding: This work was supported by EPSRC grant EP/E032869/1.

PAMELA is a design study of a non-scaling FFAG for hadron therapy aiming to deliver 250 MeV protons and 400 MeV/u carbon ions. This paper outlines the general magnet design required for the 250 MeV proton case. The magnet design is challenging because of the combination of required field strength (up to 4T), geometric constraints (the magnets need to be short) and large beam aperture (up to 160 mm). All magnets are combined function magnets with dipole, quadrupole, sextupole and octupole field components of good field quality.

• T. Yokoi, J.H. Cobb, H. Witte
  OXFORDphysics, Oxford, Oxon
• M. Aslaninejad, J. Pasternak, J.K. Pozimski
  Imperial College of Science and Technology, Department of Physics, London
• R.J. Barlow
  UMAN, Manchester
• C.D. Beard, P.A. McIntosh, S.L. Smith
  STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
• R.J.L. Fenning
  Brunel University, Middlesex
• I.S.K. Gardner
  STFC/RAL/ISIS, Chilton, Didcot, Oxon
• D.J. Kelliher, S. Machida
  STFC/RAL/ASTeC, Chilton, Didcot, Oxon
• K.J. Peach, S.L. Sheehy
  JAI, Oxford
• R. Seviour
  Cockcroft Institute, Lancaster University, Lancaster
• S.C. Tygier
  Manchester University, Manchester
• B. Vojnovic
  Gray Cancer Institute, Northwood, Middlesex

Funding: EP/E032869/1

AMELA (Particle Accelerator for MEdicaL Applications) is a newly developed fixed field accelerator, which has capability for  rapid beam acceleration, which is interesting  for practical applications  such as charged particle therapy.  PAMELA aims to design a particle therapy facility using Non-Scaling FFAG technology, with a target beam repetition rate of 1kHz, which is far beyond that of conventional synchrotron. To realize the repetition rate, the key component is rf acceleration system. The combination of a high field gradient and a high duty factor is a significant challenge.   In this paper, options for the system and the status of their development are presented.

• 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) is a design for a non-scaling Fixed Field Alternating Gradient accelerator facility for Charged Particle Therapy, using protons and light ions such as carbon to treat certain types of cancer. A lattice has been designed which constrains the variation of betatron tunes through acceleration and thus avoids integer resonance crossing and beam blow-up. This paper outlines the design and performance of this proposed PAMELA lattice.

• 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.L. Smith, S.I. Tzenov
  STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
• N. Bliss
  STFC/DL, Daresbury, Warrington, Cheshire
• T.R. Edgecock, J.K. Pozimski, J. Rochford
  STFC/RAL, Chilton, Didcot, Oxon
• R.J.L. Fenning, A. Khan
  Brunel University, Middlesex
• M.A. Hill
  GIROB, Oxford
• C. Johnstone
  Fermilab, Batavia
• B. Jones, B. Vojnovic
  Gray Institute for Radiation Oncology and Biology, Oxford
• D.J. Kelliher, S. Machida
  STFC/RAL/ASTeC, Chilton, Didcot, Oxon
• R. Seviour
  Cockcroft Institute, Lancaster University, Lancaster

Funding: EPSRC EP/E032869/1

The PAMELA (Particle Accelerator for MEdicaL Applications) project is to design an accelerator for proton and light ion therapy using non-scaling Fixed Field Alternating Gradient (FFAG) accelerators, as part of the CONFORM project, which is also constructing the EMMA electron model of a non-scaling FFAG at Daresbury. This paper presents an overview of the PAMELA design, and a discussion of the design goals and the principles used to arrive at a preliminary specification of the accelerator.

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