WFC3/UVIS CTE-EPER Measurement

Details WFC3/UVIS CTE-EPER Measurement WFC3/UVIS CTE-EPER Measurement

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009nicm.rept...10k&link_type=abstract

Instrument Science Report WFC 2009-10, 11 pages

Physics

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

Scientific paper

We present an analysis and the measurements of the Charge Transfer Efficiency (CTE) using the Extended Pixel Edge Response (EPER) technique for the WFC3 UVIS flight detector tested during the ground-based thermal vacuum campaign in April 2008. We present an algorithm for CTE calculation and a power-law functional dependence between CTE and signal level. The analysis shows that CTE is approximately 0.999999 for each amplifier. These CTE pre-flight measurements will serve as a first epoch for WFC3/UVIS CTE internal monitoring.

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