Author: Haj Tahar, M.
Paper Title Page
MOPJE077 Progress on Simulation of Fixed Field Alternating Gradient Accelerators 495
 
  • S.L. Sheehy
    JAI, Oxford, United Kingdom
  • A. Adelmann
    PSI, Villigen PSI, Switzerland
  • M. Haj Tahar, F. Méot
    BNL, Upton, Long Island, New York, USA
  • Y. Ishi, Y. Kuriyama, Y. Mori, M. Sakamoto, T. Uesugi
    Kyoto University, Research Reactor Institute, Osaka, Japan
  • D.J. Kelliher, S. Machida, C.R. Prior, C.T. Rogers
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom
 
  Fixed Field Alternating Gradient accelerators have been realised in recent decades thanks partly to computational power, enabling detailed design and simulation prior to construction. We review the specific challenges of these machines and the range of different codes used to model them including ZGOUBI, OPAL and a number of in-house codes from different institutes. The current status of benchmarking between codes is presented and compared to the results of recent characterisation experiments with a 150 MeV FFAG at KURRI in Japan. Finally, we outline plans toward ever more realistic simulations including space charge, material interactions and more detailed models of various components.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE077  
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MOPMN008 Space Charge Studies in FFAG Using the Tracking Code Zgoubi 717
 
  • M. Haj Tahar, F. Méot, N. Tsoupas
    BNL, Upton, Long Island, New York, USA
 
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
A method is implemented in Zgoubi that allows the computation of space charge effects in 2D distributions and with some restrictions in 3D distributions. It relies on decomposiing field maps or analytical elements into slices and applying a space charge kick to the particles. The aim of this study is to investigate the accuracy of this technique, its limitations/advantages by comparisons with other linear/nonlinear computation methods and codes, and to apply it to high power fixed field ring design studies.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPMN008  
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