WFC3 TV2 Testing: IR Gain Results

Details WFC3 TV2 Testing: IR Gain Results WFC3 TV2 Testing: IR Gain Results

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007wfc..rept...28h&link_type=abstract

Instrument Science Report WFC3 2007-28, 12 pages

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Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3, Therman Vacuum 2, Tv2

Scientific paper

Over the course of Thermal Vacuum 2 (TV2) testing during the summer of 2007, we obtained several datasets that allowed us to calculate the gain of the IR1 (FPA129) detector. At the nominal flight gain setting of 2.0 e-/ADU, we measure gain values between 2.12 - 2.16 e-/ADU, after accounting for inter-pixel capacitance (IPC). This corresponds to 2.41 - 2.45 e-/ADU before the IPC correction. For the other (unsupported) gain settings of 2.5, 3.0, and 4.0 e-/ADU, we calculate actual gain values of 2.78 - 2.88, 3.33 - 3.48, and 4.50 - 4.76 e-/ADU respectively, after IPC correction.

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