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Proceedings Paper

Stability and lifetime testing of photomultiplier detectors for the Earth observing system SOLSTICE program
Author(s): Joshua A. Hadler; Toni Van de Kop; Virginia Ann Drake; William E. McClintock; John Murphy; Paul Rodgers
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Paper Abstract

The primary objective of the Earth Observing System (EOS) Solar Stellar Irradiance Comparison Experiment (SOLSTICE) is to accurately measure the absolute value of the solar UV irradiance at the top of the earth's atmosphere for a minimum mission lifetime of 5 years. To meet this objective, SOLSTICE employs a unique design to determine changes in instrument performance by routinely observing a series of early-type stars and comparing the irradiances directly with the solar value. Although the comparison techniques allows us to track instrument performance, the success of the SOLSTICE experiment depends upon photomultiplier detectors which have graceful degradation properties. Therefore, we have established a laboratory program to evaluate the characteristics of photomultiplier tubes which are exposed to long term fluxes similar to those we expected to encounter in flight. Three types of Hamamatsu photomultiplier tubes were tested as candidates for use in the EOS-SOLSTICE project. The results of these studies: pulse height distribution; quantum efficiency; surface maps,; and lifetime analysis are presented in this paper.

Paper Details

Date Published: 27 October 1998
PDF: 10 pages
Proc. SPIE 3427, Optical Systems Contamination and Degradation, (27 October 1998); doi: 10.1117/12.328508
Show Author Affiliations
Joshua A. Hadler, Lab. for Atmospheric and Space Physics (United States)
Toni Van de Kop, Lab. for Atmospheric and Space Physics (United States)
Virginia Ann Drake, Lab. for Atmospheric and Space Physics (United States)
William E. McClintock, Lab. for Atmospheric and Space Physics (United States)
John Murphy, Lab. for Atmospheric and Space Physics (United States)
Paul Rodgers, Lab. for Atmospheric and Space Physics (United States)


Published in SPIE Proceedings Vol. 3427:
Optical Systems Contamination and Degradation
Philip T. C. Chen; William E. McClintock; Gary J. Rottman, Editor(s)

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