Long-term orbital performance of the microchannel plate (MCP) detectors aboard the Extreme Ultraviolet Explorer

John V. Vallerga; Marty Eckert; Martin Sirk; Oswald H. W. Siegmund; Roger F. Malina

doi:10.1117/12.186837

16 September 1994 Long-term orbital performance of the microchannel plate (MCP) detectors aboard the Extreme Ultraviolet Explorer

John V. Vallerga, Marty Eckert, Martin Sirk, Oswald H. W. Siegmund, Roger F. Malina

Author Affiliations +

Proceedings Volume 2280, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V; (1994) https://doi.org/10.1117/12.186837
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The Extreme Ultraviolet Explorer (EUVE), launched June 7, 1992, conducted an all-sky survey in the extreme ultraviolet wavelengths (70-760 angstrom) for 6 months and is now performing spectroscopic pointings for Guest Observers. The seven microchannel plate (MCP) detectors used on the instrument (four for imaging in photometric wavebands and three for the spectrometers) have operated successfully throughout the mission. The long-term (780 days) performance characteristics such as quantum efficiency (QE), gain, and background count rate, will be reviewed along with other interesting unexpected effects noted during the mission. Because the QE has remained constant, the background has been reduced, and other effects have been minimized, the EUVE instruments currently operate better than after launch and will probably continue to do so.

Citation Download Citation

John V. Vallerga, Marty Eckert, Martin Sirk, Oswald H. W. Siegmund, and Roger F. Malina "Long-term orbital performance of the microchannel plate (MCP) detectors aboard the Extreme Ultraviolet Explorer", Proc. SPIE 2280, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V, (16 September 1994); https://doi.org/10.1117/12.186837

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