WFC3 UVIS Dark Current and Readnoise from Ambient Testing

Details WFC3 UVIS Dark Current and Readnoise from Ambient Testing WFC3 UVIS Dark Current and Readnoise from Ambient Testing

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004wfc..rept...13h&link_type=abstract

Instrument Science Report WFC3-2004-13, 7 pages

Computer Science

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3, Uvis, Dark Current, Readnoise

Scientific paper

WFC3 underwent instrument-level testing under ambient conditions during late June and early July, 2004 at Goddard Space Flight Center (GSFC). Dark current and readnoise values of the UVIS channel have been measured. At a detector temperature of -70oC, the dark current and readout noise are both well within contract-end item (CEI) specifications. Dark current values range from 0.94 to 1.08 e-/pix/hr, and are comparable to preship values measured at Ball. Measurements of the readnoise reveal values of ~3 electrons, also comparable to pre-ship values and values measured during the mini-ambient testing performed earlier in the year.

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