WFC3 TV3 Testing: UVIS Channel Glints

Details WFC3 TV3 Testing: UVIS Channel Glints WFC3 TV3 Testing: UVIS Channel Glints

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008wfc..rept....7b&link_type=abstract

Instrument Science Report WFC3 2008-07, 4 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3, Thermal Vacuum, Uvis, Glints

Scientific paper

In the previous thermal vacuum (TV) campaign of 2007, it was discovered that the UVIS channel was subject to strong glints (containing ~1% to 30% of the source energy) due to reflections between the CCD surface and the CCD housing. The detector installed in WFC3 at the time was the spare detector, but the problem was due to a design flaw common to both the flight and spare detectors, so the flight detector was corrected to address this problem. In the current TV campaign, we have stepped a bright source across the detector and find no significant glints (i.e., none brighter than 0.1% of the source), confirming that the problem was solved.

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