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Toader, A.M.

Paper Title Page
MOPEC047 High Current Proton FFAG Accelerators 564
 
  • 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

 
TUPEC057 Advances With Merlin - A Beam Tracking Code 1853
 
  • 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.

 
TUPD061 Simulations of the LHC Collimation System 2066
 
  • 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.