• 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.

• C. Bungau
  Manchester University, Manchester
• R.J. Barlow
  UMAN, Manchester
• R. Cywinski
  University of Huddersfield, Huddersfield

Thorium fueled Accelerator Driven Subcritical Reactors have been proposed as a more comprehensive alternative to conventional nuclear reactors for both energy production and for burning radioactive waste. Several new classes have been added by the authors to the GEANT4 simulation code, extension which allows the state-of-the-art code to be used for the first time for nuclear reactor criticality calculations. In this paper we investigate the impact of the subcriticality and injected proton beam energy on the ADSR performance for novel ADSR configurations involving multiple accelerator drivers and associated neutron spallation targets within the reactor core.

• R.J. Barlow, A.M. Toader, S.C. Tygier
  UMAN, Manchester

Accelerator Driven Subcritical Reactors require a high currents of energetic protons. We compute the limits imposed by space charge, and explore what can be achieved using various proposed FFAG lattices. Limitations due to beam losses and reliability are also discussed

• J. Molson, R.J. Barlow, H.L. Owen, A.M. Toader
  UMAN, Manchester
• J. Molson
  Cockcroft Institute, Warrington, Cheshire

MERLIN is a highly abstracted particle tracking code written in C++ that provides many unique features, and is simple to extend and modify. We have investigated the addition of high order wakefields to this tracking code and their effects on bunches, particularly with regard to collimation systems for both hadron and lepton accelerators. Updates have also been made to increase the code base compatibility with current compilers, and speed enhancements have been made to the code via the addition of multi-threading to allow cluster operation on the grid. In addition, this allows for simulations with large numbers of particles to take place. Instructions for downloading the new code base are given.

• R.J. Barlow, R. Appleby, J. Molson, H.L. Owen, A.M. Toader
  UMAN, Manchester

The collimation system of the LHC will be critical to its success, as the halo of high energy (7 TeV) particles must be removed in such a way that they do not deposit energy in the superconducting magnets which would quench them, or showers in the experiments. We study the properties of the LHC collimation system as predicted by the Merlin and Sixtrack/K2 simulation packages, and compare their predictions for efficiency and halo production, and the pattern of beam losses. The sophisticated system includes many collimators, serving different purposes. Both programs include energy loss and multiple Coulomb scattering as well as losses through nuclear scattering. The MERLIN code also includes the effects of wakefields. We compare the results and draw conclusions on the performance that can be achieved.

• J. Pasternak, L.J. Jenner, Y. Uchida
  Imperial College of Science and Technology, Department of Physics, London
• R.J. Barlow
  UMAN, Manchester
• K.M. Hock, B.D. Muratori
  Cockcroft Institute, Warrington, Cheshire
• D.J. Kelliher, S. Machida, C.R. Prior
  STFC/RAL/ASTeC, Chilton, Didcot, Oxon
• Y. Kuno, A. Sato
  Osaka University, Osaka
• A. Kurup
  Fermilab, Batavia
• J.-B. Lagrange, Y. Mori
  KURRI, Osaka
• M. Lancaster
  UCL, London
• S.A. Martin
  FZJ, Jülich
• C. Ohmori
  KEK/JAEA, Ibaraki-Ken
• J. Pasternak
  STFC/RAL, Chilton, Didcot, Oxon
• S.L. Smith
  STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
• H. Witte, T. Yokoi
  JAI, Oxford

The next generation of lepton flavour violation experiments will use high intensity and high quality muon beams. Such beams can be produced by sending a short proton pulse to the pion production target, capturing pions and performing RF phase rotation on the resulting muon beam in an FFAG ring, which was proposed for the PRISM project. A PRISM task force was created to address the accelerator and detector issues that need to be solved in order to realise the PRISM experiment. The parameters of the initial proton beam required and the PRISM experiment are reviewed. Alternative designs of the PRISM FFAG ring are presented and compared with the reference design. The ring injection/extraction system, matching with the solenoid channel and progress on the ring's main hardware systems like RF and kicker magnet are discussed. The activity on the simulation of a high sensitivity experiment and the impact on physics reach is described. The progress and future directions of the study are presented in this paper.