Numerical Simulation of the Electromagnetic Instability of an Intense Beam in a Quadrupole Focusing System
Abstract
Discrete quadrupole focusing systems are subject to an electromagnetic instability wherein the growing transverse motion of the beam interacts with the quadrupole field and the TE11, waveguide mode. We study this via three-dimensional particle simulation. We find evidence of the instability, with growth rates and frequencies in reasonable agreement with theory. The instability is found to saturate at a low amplitude, however, and has no discernable effect on the macroscopic properties of the beam. Intense beam Quadrupole focusing Three-wave instability.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 15, 1992
- Accession Number
- ADA252275
Entities
People
- Chai AMei Tang
- Jonathan F. Krall
- T. Swyden
Organizations
- United States Naval Research Laboratory