Active damping of the E-P instability at the LANL PSR

R. McCrady, R. Macek, T. Zaugg, S. Assadi, C. Deibele, S. Henderson, M. Plum, S. Y. Lee, S. Walbridge, J. Byrd, M. Pivi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A prototype of an analog, transverse (vertical) feedback system for active damping of the two-stream (e-p) instability has been developed and successfully tested at the Los Alamos National Laboratory Proton Storage Ring (PSR). This system was able to improve the instability threshold by approximately 30% (as measured by the change in RF buncher voltage at instability threshold). Evidence obtained from these tests suggests that further improvement in performance is limited by beam leakage into the gap at lower RF buncher voltage and the onset of instability in the horizontal plane, which had no feedback. Here we describe the present system configuration, system optimization, results of several recent experimental tests, and results from studies of factors limiting its performance.

Original languageEnglish
Title of host publicationProceedings of the IEEE Particle Accelerator Conference, PAC07
Pages548-550
Number of pages3
DOIs
StatePublished - 2007
EventIEEE Particle Accelerator Conference, PAC07 - Albuquerque, NM, United States
Duration: Jun 25 2007Jun 29 2007

Publication series

NameProceedings of the IEEE Particle Accelerator Conference

Conference

ConferenceIEEE Particle Accelerator Conference, PAC07
Country/TerritoryUnited States
CityAlbuquerque, NM
Period06/25/0706/29/07

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