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Prior, C.R.

Paper Title Page
MOIA02 Overview of High Intensity Accelerator Projects 6
 
  • C.R. Prior
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
 
 

This review will cover in the time available as many as possible of the high intensity hadron accelerator projects worldwide. The range will be from spallation neutron sources to machines for neutrino physics and will include existing and proposed accelerators. The aim will be to explore parameter ranges, identify areas of commonality and highlight how experience in one project can be used to help solve challenges in others.

 

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THO2B05 High Intensity Studies on the ISIS Synchrotron, Including Key Factors for Upgrades and the Effects of Half Integer Resonance. 619
 
  • C.M. Warsop, D.J. Adams, I.S.K. Gardner, B. Jones, R.J. Mathieson, S.J. Payne, B.G. Pine, A. Seville, H. V. Smith, J.W.G. Thomason, R.E. Williamson
    STFC/RAL/ISIS, Chilton, Didcot, Oxon
  • C.R. Prior, G.H. Rees
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
 
 

ISIS is the spallation neutron source at Rutherford Appleton Laboratory in the UK. Operation centres on a high intensity proton synchrotron, accelerating 3·1013 ppp from 70-800 MeV, at a rep rate of 50 Hz. Studies are under way looking at many aspects of high intensity behaviour, with a view to increasing operational intensity, identifying optimal upgrade routes and understanding more about fundamental intensity limitations. Present work is assessing the possibility of increasing beam power by raising injection energy into the present ring (~180 MeV), with a new optimised injector. Progress on calculations and simulations for the main high intensity topics is presented, including: space charge and emittance evolution in the transverse and longitudinal planes, beam stability and injection optimisation. Of particular interest is the space charge limit imposed by half integer resonance, for which latest experimental and simulation results are reviewed. Results from measurement and 3D simulation of the present operational machine are also summarised, along with investigations of the observed loss mechanisms. Finally, future plans are outlined.

 

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