WFC3 Ambient-2 Testing: UVIS Gain Results

Details WFC3 Ambient-2 Testing: UVIS Gain Results WFC3 Ambient-2 Testing: UVIS Gain Results

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007wfc..rept...11b&link_type=abstract

Instrument Science Report WFC3 2007-11, 6 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3, Ambient 2 Test, Uvis

Scientific paper

The integrated WFC3 instrument recently underwent testing under ambient conditions at Goddard Space Flight Center (GSFC); the UVIS-2 detector was in place, operated at -54 C. One of the tests performed was the relative gain procedure (UV03S01A); analysis of the data show that the gains, assuming a nominal gain of 1.5 e-/DN for the gain 1.5 setting, are on average 1.03, 2.10, and 4.28 e-/DN with errors ~0.01 e-/DN. A check of the absolute gain at the nominal 1.5 setting was performed using a set of flatfield pairs; gains were measured at 1.58, 1.55, 1.65, and 1.61 e-/DN, with errors ~0.01 e-/DN, for quadrants A,B,C, and D.

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