Self-Consitstent simulations of High-Intesity Beams and E-Cloudswith WARP POSINST
We have developed a new, comprehensive set of simulation tools aimed at modeling the interaction of intense ion beams and electron clouds (e-clouds). The set contains the 3-D accelerator PIC codeWARP and the 2-D ''slice'' ecloud code POSINST, as well as a merger of the two, augmented by new modules for impact ionization and neutral gas generation. The new capability runs on workstations or parallel supercomputers and contains advanced features such as mesh refinement, disparate adaptive time stepping, and a new ''drift-Lorentz'' particle mover for tracking charged particles in magnetic fields using large time steps. It is being applied to the modeling of ion beams (1 MeV, 180 mA, K+) for heavy ion inertial fusion and warm dense matter studies, as they interact with electron clouds in the High-Current Experiment (HCX). In earlier papers, we described the capabilities and presented recent simulation results with detailed comparisons against the HCX experiment, as well as their application (in a different regime) to the modeling of e-clouds in the Large Hadron Collider (LHC). We concentrate here on the description of the implementation of the ''quasi-static'' mode of operation, for comparison with other codes, and introduce a new consideration on the estimate of computing time between the quasi-static and the fully self-consistent modes.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of Fusion Energy Sciences, LawrenceLivermore National Laboratory, US=LHC Accelerator Research Program(LARP)
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 900710
- Report Number(s):
- LBNL-60551; HIFAN 1545; R&D Project: Z41003; BnR: AT5015031; TRN: US0702374
- Resource Relation:
- Conference: 9th International Computational AcceleratorPhysics ConferenceICAP 06, Charmonix Mont-Blanc, France, Oct. 2-6th2006
- Country of Publication:
- United States
- Language:
- English
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