3D simulations of an electrostatic quadrupole injector

Conference · Mon Feb 01 00:00:00 EST 1993

OSTI ID:10178056

Grote, D P ^[1]; Friedman, A ^[2]; Yu, S ^[3]

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1. California Univ., Davis, CA (United States)
2. Lawrence Livermore National Lab., CA (United States)
3. Lawrence Berkeley Lab., CA (United States)

Analysis of the dynamics of a space charge dominated beam in a lattice of electrostatic focusing structures requires a full three-dimensional conic that includes self-consistent space charge fields and the fields from the complex conductor shapes. The existing WARP3d code, a particle simulation code which has been developed for heavy-ion fusion (HIF) applications contains machinery for handling particles in three-dimensional fields. A successive overrelaxation field solver with subgrid-scale placement of boundaries for rounded surface and four-fold symmetry has been added to the code. The electrostatic quadrupole (ESQ) injector for the ILSE accelerator facility being planned at Lawrence Berkeley Laboratory is shown as an application. The issue of concern is possible emittance degradation because the focusing voltages are a significant fraction of the particles` energy and because there are significant nonlinear fields arising from the shapes of the quadrupole structures.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10178056
• Report Number(s): UCRL-JC-111188; CONF-930269-19; ON: DE93018635
• Resource Relation: Conference: Computational accelerator physics conference (CAP93),Pleasanton, CA (United States),22-26 Feb 1993; Other Information: PBD: Feb 1993
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
BEAM INJECTION
W CODES
QUADRUPOLES
BEAM EMITTANCE
COMPUTER CALCULATIONS
THREE-DIMENSIONAL CALCULATIONS
SPACE CHARGE
HEAVY ION FUSION REACTIONS
430200
661220
990200
BEAM DYNAMICS, FIELD CALCULATIONS, AND ION OPTICS
PARTICLE BEAM PRODUCTION AND HANDLING
TARGETS
MATHEMATICS AND COMPUTERS