Characterization of persistence in WIRCam's Hawaii 2-RG arrays

Marc R. Baril; Loic Albert

doi:10.1117/12.789648

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22 July 2008 Characterization of persistence in WIRCam's Hawaii 2-RG arrays

Marc R. Baril, Loic Albert

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Proceedings Volume 7021, High Energy, Optical, and Infrared Detectors for Astronomy III; 702121 (2008) https://doi.org/10.1117/12.789648
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Persistence or image memory is a common problem in infrared array detectors. In WIRCam, the wide-field infrared camera at the Canada France Hawaii Telescope, two of the four Hawaii-2RG (H2RG) HgCdTe imaging arrays in its mosaic exhibit strong persistence while the other two do not. The dependence of the persistence on illumination flux and fluence has been investigated and the persistence measured on the timescale of hundreds of milliseconds to several hours. The goal of this work is to eventually provide an empirical model to correct for the persistence in image post-processing.

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Marc R. Baril and Loic Albert "Characterization of persistence in WIRCam's Hawaii 2-RG arrays", Proc. SPIE 7021, High Energy, Optical, and Infrared Detectors for Astronomy III, 702121 (22 July 2008); https://doi.org/10.1117/12.789648

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