Persistence characterization and data calibration scheme for the RSS-NIR H2RG detector on SALT

Gregory Mosby Jr.; Nathan Eggen; Marsha Wolf; Kurt Jaehnig; Ralf Kotulla

doi:10.1117/12.2233227

27 July 2016 Persistence characterization and data calibration scheme for the RSS-NIR H2RG detector on SALT

Gregory Mosby Jr., Nathan Eggen, Marsha Wolf, Kurt Jaehnig, Ralf Kotulla

Proceedings Volume 9915, High Energy, Optical, and Infrared Detectors for Astronomy VII; 99152U (2016) https://doi.org/10.1117/12.2233227
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

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.

Citation Download Citation

Gregory Mosby Jr., Nathan Eggen, Marsha Wolf, Kurt Jaehnig, and Ralf Kotulla "Persistence characterization and data calibration scheme for the RSS-NIR H2RG detector on SALT", Proc. SPIE 9915, High Energy, Optical, and Infrared Detectors for Astronomy VII, 99152U (27 July 2016); https://doi.org/10.1117/12.2233227

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