High stability of negative electron affinity gallium arsenide photocathodes activated with Cs and NF<sub>3</sub>

201547 citationsJournal Article

Authors

Narong Chanlek · Sci-Tech Daresbury

J. D. Herbert · Daresbury Laboratory

R.M. Jones · University of Manchester

L. B. Jones · Sci-Tech Daresbury

Keith Middleman · Cockcroft Institute

Boris Militsyn · Sci-Tech Daresbury

Abstract

In this paper we report the first time demonstration under extremely high vacuum (XHV) conditions of the influence of O2, CO2, CO, N2, H2 and CH4 on the quantum efficiency (QE) of negative electron affinity (NEA) gallium arsenide (GaAs) photocathodes activated with Cs and NF3. The photocathodes were exposed to a small quantity (

Topics & Keywords

Photocathodes and Microchannel Plates Radiation Therapy and Dosimetry Dark Matter and Cosmic Phenomena

Publication Details

Published in: Journal of Physics D Applied Physics

Volume 48, Issue 37, pp. 375102-375102

DOI: 10.1088/0022-3727/48/37/375102

Field-Weighted Citation Impact: 1.59

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High stability of negative electron affinity gallium arsenide photocathodes activated with Cs and NF<sub>3</sub>

Authors

Abstract

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Publication Details