Abstract

The quantum efficiences of spectrally selective photocathodes for the middle and vacuum uv (semitransparent depositions of CsI, CuI, and CsTe on Al2O3 windows, a solid tungsten photocathode behind a MgF2 window) were measured before their use as detectors in a rocket experiment, one year later, and after irradiation by high energy electrons. Only the CsI photodiode showed any change in quantum efficiency, a notable increase after irradiation. Two additional CsI diodes were then irradiated, one with high energy electrons, the other with gamma rays. However, these diodes showed no change in quantum efficiency. The quantum efficiencies of all the photodiodes appear stable with time. The CuI and CsTe diodes also remain stable under irradiation, while the CsI diode may exhibit an increase in quantum efficiency after irradiation.

© 1968 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spectrally Selective Photodetectors for the Middle and Vacuum Ultraviolet

Lawrence Dunkelman, Walter B. Fowler, and John Hennes
Appl. Opt. 1(6) 695-700 (1962)

Quantum efficiency of cesium iodide photocathodes at soft x-ray and extreme ultraviolet wavelengths

M. P. Kowalski, G. G. Fritz, R. G. Cruddace, A. E. Unzicker, and N. Swanson
Appl. Opt. 25(14) 2440-2446 (1986)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription