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Effect of roughness on emittance of potassium cesium antimonide photocathodes

  • T. Vecchion
  • , J. Feng
  • , W. Wan
  • , H. A. Padmore
  • , I. Ben-Zvi
  • , X. Liang
  • , M. Ruiz-Oses
  • , T. Rao
  • , J. Smedley
  • , D. Dowell
  • Lawrence Berkeley National Laboratory
  • Stony Brook University
  • Brookhaven National Laboratory
  • SLAC National Accelerator Laboratory

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

7 Scopus citations

Abstract

Here we present first measurements of the effect of roughness on the emittance of K2CsSb photocathodes under high fields. We show that for very thin cathodes the effect is negligible at up to 3 MV/m but for thicker and more efficient cathodes the effect becomes significant. We discuss ways to modify the deposition to circumvent this problem.

Original languageEnglish
Title of host publicationIPAC 2012 - International Particle Accelerator Conference 2012
Pages655-657
Number of pages3
StatePublished - 2012
Event3rd International Particle Accelerator Conference 2012, IPAC 2012 - New Orleans, LA, United States
Duration: May 20 2012May 25 2012

Publication series

NameIPAC 2012 - International Particle Accelerator Conference 2012

Conference

Conference3rd International Particle Accelerator Conference 2012, IPAC 2012
Country/TerritoryUnited States
CityNew Orleans, LA
Period05/20/1205/25/12

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