A Throughput Tool for WFC3

Details A Throughput Tool for WFC3 A Throughput Tool for WFC3

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003wfc..rept...13b&link_type=abstract

Instrument Science Report WFC3 2003-13, 5 pages

Astronomy and Astrophysics

Astronomy

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3

Scientific paper

We have written an IDL program, called wfc3tp.pro, for estimating the count rate on the Wide Field Camera 3 (WFC3) detectors given an input flux. The input flux can either be astronomical (in which case the HST Optical Telescope Assembly is included in the system throughput) or the optical stimulus used in ground testing (in which case the input flux is assumed to be in photons at the WFC3 pickoff mirror). Besides the obvious selectable parameters (filter and channel), the user can also specify the chip in UV channel, the quadrant in the IR channel, the filter temperature in the IR channel, the quantum yield correction (creation of more than one electron for UV photon), and the band width for the optical stimulus beam. The program was written to assist with ground testing, but it is useful for calculating the signal-to-noise in astronomical observations with WFC3.

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