Longitudinal instabilities in the MEB

In this paper longitudinal instability parameters are calculated for the SSC Medium Energy Booster (MEB). Both single and multiple bunch instabilities are investigated. With a beam intensity of 1.0/spl times/10/sup 10/ the longitudinal coupling impedance threshold, |Z/sub /spl par(/spl omega/)/n|, i...

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Bibliographic Details
Main Author: Palkovic, J.A.
Format: Conference Proceeding
Language:English
Subjects:
Distribution functions
Equations
Impedance
Laboratories
Optical coupling
Particle beams
Physics
Radio frequency
Stability
Synchrotrons
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Summary:In this paper longitudinal instability parameters are calculated for the SSC Medium Energy Booster (MEB). Both single and multiple bunch instabilities are investigated. With a beam intensity of 1.0/spl times/10/sup 10/ the longitudinal coupling impedance threshold, |Z/sub /spl par(/spl omega/)/n|, is found to be /spl sim/60 /spl Omega/ at the injection momentum 12 GeV/c, and 12 /spl Omega/ at the ejection momentum, 200 GeV/c. Coupled bunch instability growth rates are calculated for the /spl lambda4 cavity higher order mode (HOM) spectrum.< >
DOI:10.1109/PAC.1993.309619