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Proceedings Paper

Persistence characterization and data calibration scheme for the RSS-NIR H2RG detector on SALT
Author(s): Gregory Mosby; Nathan Eggen; Marsha Wolf; Kurt Jaehnig; Ralf Kotulla
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Paper Abstract

The University of Wisconsin Madison is building a NIR spectrograph (RSS-NIR) for the Southern African Large Telescope. The detector system uses a H2RG HdCdTe 1.7 μm cutoff array. We performed tests to measure and characterize the persistence of the detector to inform strategies to mitigate this effect. These tests use up-the- ramp group samples to get finer time resolution of the release of persistence. We share these test results. We also present preliminary results of the dependence of persistence on detector temperature. We conclude with an outline and assessment of a persistence calibration scheme.

Paper Details

Date Published: 27 July 2016
PDF: 17 pages
Proc. SPIE 9915, High Energy, Optical, and Infrared Detectors for Astronomy VII, 99152U (27 July 2016); doi: 10.1117/12.2233227
Show Author Affiliations
Gregory Mosby, Univ. of Wisconsin-Madison (United States)
Nathan Eggen, Univ. of Wisconsin-Madison (United States)
Marsha Wolf, Univ. of Wisconsin-Madison (United States)
Kurt Jaehnig, Univ. of Wisconsin-Madison (United States)
Ralf Kotulla, Univ. of Wisconsin-Madison (United States)


Published in SPIE Proceedings Vol. 9915:
High Energy, Optical, and Infrared Detectors for Astronomy VII
Andrew D. Holland; James Beletic, Editor(s)

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