Accession Number:

ADA193134

Title:

SARLAC: A Relativistic Electron Beam Code

Descriptive Note:

Memorandum rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Joyce, Glenn
• Hubbard, Richard
• Lampe, Martin
• Slinker, Steven

Report Date:

1988-02-10

Pagination or Media Count:

25.0

Abstract:

SARLAC is a particle simulation code for studying the propagation of ultrarelativistic electron beams. It is used to study the nonlinear evolution of the resistive hose instability. We have developed a fast, semi-implicit, iterative field solver which allows us to include a large number of Fourier modes in the azimuthal direction. The solver iterates about a solution of the field equations dominated by the axisymmetric m 0 conductivity. This technique has proved to be quite successful. We compare some results of the code with those obtained from a linearized hose simulation code, and show differences when the hose oscillations reach large amplitude. Keywords Relativistic electron beams Hose instability Particle simulation code Beam propagation code.

Descriptors:

• *COMPUTERIZED SIMULATION
• *ELECTRON BEAMS
• AZIMUTH
• CODING
• ELECTRICAL CONDUCTIVITY
• ELECTROMAGNETIC WAVE PROPAGATION
• EVOLUTION(GENERAL)
• FOURIER ANALYSIS
• ITERATIONS
• LINEARITY
• MAXWELLS EQUATIONS
• NONLINEAR SYSTEMS
• PARTICLES
• RELATIVITY THEORY
• SIMULATION
• STABILITY

Subject Categories:

• Particle Accelerators

Distribution Statement:

APPROVED FOR PUBLIC RELEASE