Overview of WARP, a particle code for heavy ion fusion

Conference · Sat Dec 25 04:00:00 EST 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5221131

Friedman, A; Grote, D P; Callahan, D A; Langdon, A B ^[1]; Haber, I ^[2]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. Naval Research Laboratory, Washington, DC 20375 (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 [ital r], [ital z] package to longitudinal stability in driver beams, are discussed in related papers.

• DOE Contract Number: W-7405-ENG-48; AI05-92ER54177; AI05-83ER40112
• OSTI ID: 5221131
• Report Number(s): CONF-9302104--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 297:1
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
BEAM DYNAMICS
BEAM TRANSPORT
COMPUTER CODES
COMPUTERIZED SIMULATION
HEAVY ION ACCELERATORS
SIMULATION
SPACE CHARGE
W CODES