Reduction of Beam Breakup Growth by Cavity Cross-Couplings in Recirculating Accelerators

Abstract

It is shown that cross-coupling among cavities may reduce beam breakup (BBU) growth in a recirculating accelerator. The main reason for this growth reduction appears to be the sharing of the deflecting mode energy among coupled cavities. The result is based on a numerical study of the proof-of- principle experiment currently planned for the Spiral Line Induction Accelerator. The beam in such an experiment (35 ns, 10 kA, 8.5 MeV) should not be vulnerable to BBU growth. The scalability to much higher energies remains unclear, however, and the various issues are explored. Keywords: Beam breakup instabilities; Spiral line induction accelerators; Recirculating accelerators; Cavity coupling.

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Document Details

Document Type
Technical Report
Publication Date
Jun 29, 1990
Accession Number
ADA223553

Entities

People

  • D. Chernin
  • D. Colombant
  • Yueying Lau

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Betatrons
  • Corporations
  • Deflection
  • Detuning
  • Equations
  • Excitation
  • Frequency
  • High Energy
  • Inductance
  • Military Research
  • Naval Warfare
  • Personal Information Managers
  • Phase Shift
  • Resonant Frequency
  • Rlc Circuits
  • Standards

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Pulsed Power and Plasma Physics.