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Overview of WARP, a particle code for Heavy Ion Fusion

Conference ·
OSTI ID:10178545
; ; ;  [1];  [2]
  1. Lawrence Livermore National Lab., CA (United States)
  2. Naval Research Lab., Washington, DC (United States)
The beams in a Heavy Ion beam driven inertial Fusion (HIF) accelerator must be focused onto small spots at the fusion target, and so preservation of beam quality is crucial. The nonlinear self-fields of these space-charge-dominated beams can lead to emittance growth; thus a self-consistent field description is necessary. We have developed a multi-dimensional discrete-particle simulation code, WARP, and are using it to study the behavior of HIF beams. The code`s 3d package combines features of an accelerator code and a particle-in-cell plasma simulation, and can efficiently track beams through many lattice elements and around bends. We have used the code to understand the physics of aggressive drift-compression in the MBE-4 experiment at Lawrence Berkeley Laboratory (LBL). We have applied it to LBL`s planned ILSE experiments, to various ``recirculator`` configurations, and to the study of equilibria and equilibration processes. Applications of the 3d package to ESQ injectors, and of the r, z package to longitudinal stability in driver beams, are discussed in related papers.
Research Organization:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48; AI05-92ER54177; AI05-83ER40112
OSTI ID:
10178545
Report Number(s):
UCRL-JC--112246; CONF-930269--17; ON: DE93018637
Country of Publication:
United States
Language:
English

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