Linear Accelerator Simulations with Bmad

Bmad is a subroutine library for modeling relativistic charged-particle dynamics. It has been used extensively as a diagnostic tool at the Cornell Electron Storage Ring (CESR). The Bmad libraries have recently been extended to include modeling of the dynamics of linear accelerators. Calculations of emittance dilution due to orbit offsets and misalignments have been compared with LIAR, Merlin and PLACET. Good agreement is found with both particle and macroparticle tracking through the NLC and TESLA lattices for the bunch compressor, main linac and final focus regions.