Modeling and measurements of the DUVFEL photoinjector cavity RF properties

J. Rose, William Graves, R. Heese, E. Johnson, S. Krinsky, B. Sheehy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


The 1.6 cell S-band photoinjector cavity has been in operation at the DUVFEL at BNL for the past year. Initial beam measurements indicated a higher than expected emittance and beam divergence at the exit of the gun field imbalance in the two cells was suspected, but lack of field probes in the cavity prohibited direct confirmation. A detailed SUPERFISH model was constructed of the cavity assembly. Field balance as a function of cathode plate and tuner position was determined using the model. A series of calibrated measurements of both the cavity RF properties and the delivered RF power was undertaken. Electron beam properties were also measured as a function of cavity tune. Significant improvements in beam quality were achieved. The simulations and measurements are presented.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Particle Accelerator Conference
EditorsP Lucas, S Webber
Number of pages3
StatePublished - 2001
Externally publishedYes
Event2001 Particle Accelerator Conference - Chicago, IL, United States
Duration: Jun 18 2001Jun 22 2001


Other2001 Particle Accelerator Conference
Country/TerritoryUnited States
CityChicago, IL

ASJC Scopus subject areas

  • Engineering(all)


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