Beam Breakup Instabilities in Linear Accelerators: Transition, Phase Mixing and Nonlinear Focusing
Abstract
The temporal and spatial evolution of the cumulative beam breakup instability (BBU) is analyzed numerically using a continuum model. It is found that neither phase mixing nor linear transverse focusing is sufficient to render BBU stable in a long pulse machine, when external damping is absent. A sufficiently strong nonlinear octupole focusing field may limit the BBU growth, however. Keywords: Beam break up; Electron beam instability; Linear accelerators; Beam circuit interaction.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 13, 1988
- Accession Number
- ADA202670
Entities
People
- Dennis G. Colombant
- Yueying Lau
Organizations
- United States Naval Research Laboratory