Effect of bunch shape on electron-proton instability

Z. Liu, V. Danilov, J. Holmes, M. Plum, S. Cousineau, J. Galambos

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

Abstract

The instability caused by the electron cloud effect (ECE) may set an upper limit to beam intensity in proton storage rings. This instability is potentially a major obstacle to the full intensity operation, at 1.5e14 protons per pulse, of the Spallation Neutron Source (SNS). High intensity experiments have been done with different sets of parameters that affect the electron-proton (e-p) instability, of which bunch intensity and bunch shape are considered as two main factors. In the experiment, the phase and amplitude of the second harmonic RF cavity are used to modify the bunch shape. Analysis is made on the experimental results to understand the impact of bunch shape on beam stability. Benchmark of the e-p model is ongoing to address the threshold of bunch shape more accurately.

Original languageEnglish
Title of host publicationIPAC 2010 - 1st International Particle Accelerator Conference
Pages2090-2092
Number of pages3
StatePublished - 2010
Event1st International Particle Accelerator Conference, IPAC 2010 - Kyoto, Japan
Duration: May 23 2010May 28 2010

Publication series

NameIPAC 2010 - 1st International Particle Accelerator Conference

Conference

Conference1st International Particle Accelerator Conference, IPAC 2010
Country/TerritoryJapan
CityKyoto
Period05/23/1005/28/10

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