EMITTANCE GROWTH AND TRANSVERSE MOTION DAMPING OF THE ATA ELECTRON BEAM WITH A SMALL DIAMETER LASER ION CHANNEL.

K. W. Struve, George J Caporaso, A. G. Cole, J. T. Weir

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Summary form only given. The Advanced Test Accelerator (ATA) (50 MeV, 10 kA, 50-ns pulse, 1-Hz repetition rate) has been operated several years with a laser guiding scheme through the accelerator to overcome the beam breaking instability. Growth of transverse beam motion has been controlled by focusing from the laser-produced ion channel, which is somewhat larger than the electron beam. The ATA has also been operated with a higher density ion channel, which has a much smaller diameter than the electron beam. In this mode the ion channel provides strong damping of transverse beam motion by phase-mixed damping with the added cost of beam emittance growth. Predictions of damping rates and emittance mode are compared to experimental observations.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
Place of PublicationNew York, NY, USA
PublisherIEEE
Pages95-96
Number of pages2
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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    Struve, K. W., Caporaso, G. J., Cole, A. G., & Weir, J. T. (1987). EMITTANCE GROWTH AND TRANSVERSE MOTION DAMPING OF THE ATA ELECTRON BEAM WITH A SMALL DIAMETER LASER ION CHANNEL. In Unknown Host Publication Title (pp. 95-96). IEEE.