Physics
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011stis.rept....3z&link_type=abstract
Instrument Science Report STIS 2011-03, 10 pages
Physics
Space Telescope Science Institute, Hubble Telescope, Hst, Stis, Space Telescope Imaging And Spectrograph
Scientific paper
The dark rate of the NUV detector of the Space Telescope Imaging and Spectrograph (STIS) has undergone a sharp rise after the instrument's repair after the fourth Hubble Servicing Mission (SM4). Variations in the dark rates can be modeled with rapid declines on the time scale of several weeks plus a long-term one over three years. The dark rate is known to be dependent on the detector temperature, and the newly derived parameters are different from those prior to August 2004. Currently, the typical rate is about 3000 counts per second over the whole detector or 3x10-3 count/sec/pixel.
Proffitt Charles
Sahnow David
Zheng Wei
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