GHRS Dark Noise Monitoring

Details GHRS Dark Noise Monitoring GHRS Dark Noise Monitoring

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ghrs.rept...70h&link_type=abstract

GHRS Instrument Science Report 070, 10 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Ghrs, Goddard High Resolution Spectograph

Scientific paper

Background dark noise levels for the GHRS have been constant since launch and continue to be consistent with the original predictions. As previously seen, the dark noise on Side 1 is less *by almost a factor of two) than the Side 2 rates and count rates are dependent on geomagnetic latitude. The particle event detection algorithm currently used in [STSDAS task] darksum does not appear to be a good predictor of dark counts from particle event-induced Cerenkov radiation - an alternated method for rejecting counts due to particle hits is being investigated. [Many interesting plots included.]

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