Abstract

The factors determining the stability of photocathodes containing alkali metals are discussed. If the necessary precautions are taken during the formation process, excellent shelf life performance can be obtained. By contrast, the stability in operation may be limited by several factors. The effects of cathode material, formation process, tube geometry, and other variables on the stability are discussed.

© 1973 Optical Society of America

Ageing of S-10 Photocathodes

W. Budde
Appl. Opt. 12(9) 2108-2114 (1973)

Use of MgF₂ and LiF Photocathodes in the Extreme Ultraviolet

L. B. Lapson and J. G. Timothy
Appl. Opt. 12(2) 388-393 (1973)

Stability of negative electron affinity Ga_0.37Al_0.63As photocathodes in an ultrahigh vacuum system

Xinlong Chen, Guanghui Hao, Benkang Chang, Yijun Zhang, Jing Zhao, Yuan Xu, and Muchun Jin
Appl. Opt. 52(25) 6272-6277 (2013)

Suppression of afterpulsing in photomultipliers by gating the photocathode

Michael P. Bristow
Appl. Opt. 41(24) 4975-4987 (2002)

Mesh-based semitransparent photocathodes

George R. Carruthers
Appl. Opt. 14(7) 1667-1672 (1975)