A 3d Parallel Beam Dynamics Code for Modeling High BrightnessBeams in Photoinjectors
In this paper we report on IMPACT-T, a 3D beam dynamics code for modeling high brightness beams in photoinjectors and rf linacs. IMPACT-T is one of the few codes used in the photoinjector community that has a parallel implementation, making it very useful for high statistics simulations of beam halos and beam diagnostics. It has a comprehensive set of beamline elements, and furthermore allows arbitrary overlap of their fields. It is unique in its use of space-charge solvers based on an integrated Green function to efficiently and accurately treat beams with large aspect ratio, and a shifted Green function to efficiently treat image charge effects of a cathode. It is also unique in its inclusion of energy binning in the space-charge calculation to model beams with large energy spread. Together, all these features make IMPACT-T a powerful and versatile tool for modeling beams in photoinjectors and other systems. In this paper we describe the code features and present results of IMPACT-T simulations of the LCLS photoinjectors. We also include a comparison of IMPACT-T and PARMELA results.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High EnergyPhysics, Office of Advanced Scientific Computing
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 862168
- Report Number(s):
- LBNL-57618; R&D Project: 453401; BnR: KA1401030; TRN: US0600389
- Resource Relation:
- Conference: 2005 Particle Accelerator Conference, Knoxville,TN, USA, May 16-20, 2005
- Country of Publication:
- United States
- Language:
- English
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