Cryogenic photoemissive electron source

L. A. Wilen, R. W. Giannetta

Research output: Contribution to journalArticlepeer-review


A compact, low-energy electron source for use at cryogenic temperatures is described. The device uses quartz optical fibers and a discharge lamp to excite photoelectrons from a cold zinc emitter. Picoampere currents are obtained with low heating. The source has been used in studies of surface-state electrons on liquid helium.

Original languageEnglish (US)
Pages (from-to)2175-2176
Number of pages2
JournalReview of Scientific Instruments
Issue number11
StatePublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation


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