Thermal emittance measurements of a cesium potassium antimonide photocathode

Ivan Bazarov, Luca Cultrera, Adam Bartnik, Bruce Dunham, Siddharth Karkare, Yulin Li, Xianghong Liu, Jared Maxson, William Roussel

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Thermal emittance measurements of a CsK2 Sb photocathode at several laser wavelengths are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. The thermal emittance is 0.56±0.03 mm mrad/mm (rms) at 532 nm wavelength. The results are compared with a simple photoemission model and found to be in a good agreement.

Original languageEnglish (US)
Article number224101
JournalApplied Physics Letters
Volume98
Issue number22
DOIs
StatePublished - May 30 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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