WFC3 TV3 Testing: UVIS-1 Crosstalk

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

Scientific paper

This report summarizes the behavior of the crosstalk in the Wide Field Camera 3 UVIS-1 flight detector based on thermal-vacuum data taken with the integrated instrument. A nonlinear type of crosstalk seen in previous tests, where a target in one quadrant gives rise to a significant mirror image in each of the other three quadrants, is confirmed as gone (<0.1 e- ), thanks to a hardware fix to the CCD electronics box and a new timing pattern. A small amount of crosstalk remains, in which point sources, extended targets, hot pixels, and cosmic rays generate a low-level mirror image in the quadrant adjoining the target quadrant, on the same chip. This residual crosstalk is linear, negative, and appears at the level of ~10-4 to 10-5 in unbinned, nominal gain (1.5 e-/DN), full-frame 4-amp readouts; the higher level occurs for targets imaged in quadrants A or C and the lower level for targets placed in quadrants B or D. In 3x3 binned 4-amp readouts, the crosstalk from point source targets placed in D is about 20% higher than that seen in unbinned readout. However, the crosstalk in binned frames is negligible for targets placed in quadrants A and B and only a small amount of crosstalk (~5x10-5) occurs due targets placed in C quadrant.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

WFC3 TV3 Testing: UVIS-1 Crosstalk does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with WFC3 TV3 Testing: UVIS-1 Crosstalk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and WFC3 TV3 Testing: UVIS-1 Crosstalk will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1114119

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.