Electron beam generation from semiconductor photocathodes

F. Arneodo, F. Cavanna, I. De Mitri, D. Mazza, V. Nassisi

Research output: Contribution to journalArticle

Abstract

Several measurements on a variety of semiconductor photocathodes were performed in order to determine their photoelectric quantum efficiency. Two different excimer lasers (XeCl and KrCl) and a pulsed Xe lamp were used as light sources for electron photoextraction from doped and undoped samples of cadmiun telluride, indium antimonide, and indium phosphide. Large current densities were obtained up to the limit of the Child-Langmuir law. This suggests the use of these materials for the production of intense electron sources, which could also be used for purity measurements of noble liquids.

Original languageEnglish (US)
Pages (from-to)63-67
Number of pages5
JournalReview of Scientific Instruments
Volume72
Issue number1 I
DOIs
StatePublished - Jan 2001

ASJC Scopus subject areas

  • Instrumentation

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