A study of hot pixel annealing in the Hubble Space Telescope Wide Field Camera 3 CCDs

Elizabeth J. Polidan; Augustyn Waczynski; Paul Marshall; Scott D. Johnson; Cheryl Marshall; Robert Reed; Randy A. Kimble; Gregory Delo; David Schlossberg; Anne Marie Russell; Terry Beck; Yiting Wen; John Yagelowich; Robert J. Hill

doi:10.1117/12.552111

12 October 2004 A study of hot pixel annealing in the Hubble Space Telescope Wide Field Camera 3 CCDs

Elizabeth J. Polidan, Augustyn Waczynski, Paul Marshall, Scott D. Johnson, Cheryl Marshall, Robert Reed, Randy A. Kimble, Gregory Delo, David Schlossberg, Anne Marie Russell, Terry Beck, Yiting Wen, John Yagelowich, Robert J. Hill

Author Affiliations +

Proceedings Volume 5487, Optical, Infrared, and Millimeter Space Telescopes; (2004) https://doi.org/10.1117/12.552111
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

A Hubble Space Telescope Wide Field Camera 3 (WFC3) CCD detector was tested for radiation effects while operating at -83C. The goal of the experiment was to evaluate the introduction and annealing rates of hot pixels and to assess the dynamics of that process. The device was irradiated while cold and warmed to +30°C for a 4 hour soak, then cooled back down to -83°C. Hot pixel populations were tracked during warm up and cool down. The results showed that the hot pixels begin to anneal around -40°C and the anneal process was largely completed before the detector reached +30°C. It was also found that, although a large fraction of the hot pixels dropped below the threshold, they remained warmer than the remaining population.

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Elizabeth J. Polidan, Augustyn Waczynski, Paul Marshall, Scott D. Johnson, Cheryl Marshall, Robert Reed, Randy A. Kimble, Gregory Delo, David Schlossberg, Anne Marie Russell, Terry Beck, Yiting Wen, John Yagelowich, and Robert J. Hill "A study of hot pixel annealing in the Hubble Space Telescope Wide Field Camera 3 CCDs", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); https://doi.org/10.1117/12.552111

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