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Performance of the Brookhaven photocathode rf gun

  • K. Batchelor
  • , I. Ben-Zvi
  • , R. C. Fernow
  • , J. Fischer
  • , A. S. Fisher
  • , J. Gallardo
  • , G. Ingold
  • , H. G. Kirk
  • , K. P. Leung
  • , R. Malone
  • , I. Pogorelsky
  • , T. Srinivasan-Rao
  • , J. Rogers
  • , T. Tsang
  • , J. Sheehan
  • , S. Ulc
  • , M. Woodle
  • , J. Xie
  • , R. S. Zhang
  • , L. Y. Lin
  • K. T. McDonald, D. P. Russell, C. M. Hung, X. J. Wang
  • Brookhaven National Laboratory
  • Columbia University
  • Princeton University
  • Stony Brook University
  • University of California at Los Angeles

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The Brookhaven Accelerator Test Facility (ATF) uses a photocathode rf gun to provide a high-brightness electron beam intended for FEL and laser acceleration experiments. The rf gun consists of 1 1 2 cells driven at 2856 MHz in π-mode with a maximum cathode field of 100 MV/m. To achieve long lifetimes, our photocathode development concentrates on robust metals such as copper, yttrium and samarium. We illuminate these cathodes with a 10 ps, frequency-quadrupled Nd: YAG laser. We describe the initial operation of the gun, including measurements of transverse and longitudinal emittance, quantum efficiencies, and peak current. These results are compared to models.

Original languageEnglish
Pages (from-to)372-376
Number of pages5
JournalNuclear Inst. and Methods in Physics Research, A
Volume318
Issue number1-3
DOIs
StatePublished - Jul 1 1992

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