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Perkett, M. R.

Paper Title Page
THPAS076 ORBIT Injection Dump Simulations of the H0 and H- Beams 3657
 
  • J. A. Holmes, M. A. Plum, J.-G. Wang, Y. Zhang
    ORNL, Oak Ridge, Tennessee
  • M. R. Perkett
    Denison University, Granville, Ohio
 
  Funding: ORNL/SNS is managed by UT-Battelle, LLC, for the U. S. Department of Energy under contract DE-AC05-00OR22725.

Simulations of the transport of H0 and H- beams to the SNS ring injection dump are carried out using the ORBIT code. During commissioning and early operations, beam losses in this region have been the highest in the accelerator and presented the most obvious hurdle to cross in achieving high intensity operation. Two tracking models are employed:

  1. a piecewise continuous symplectic representation of the lattice elements in the injection chicane and dump line, and
  2. particle tracking in full 3D magnetic fields, as obtained from OPERA code evaluations.
The physics models also include estimations of scattering from both the primary and secondary stripper foils, and beam losses due to apertures throughout the beam line.