Characterizing the Robert Stobie Spectrograph's near-infrared detector

Ryan L. Doering; Andrew I. Sheinis; Donald J. Thielman; Marsha J. Wolf; Kurt P. Jaehnig; Michael P. Smith

doi:10.1117/12.857935

20 July 2010 Characterizing the Robert Stobie Spectrograph's near-infrared detector

Ryan L. Doering, Andrew I. Sheinis, Donald J. Thielman, Marsha J. Wolf, Kurt P. Jaehnig, Michael P. Smith

Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77356Y (2010) https://doi.org/10.1117/12.857935
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We report on the detector testing status for the Robert Stobie Spectrograph's near-infrared arm. The instrument utilizes a Teledyne HAWAII-2RG HgCdTe detector array with a 1.7 μm cutoff wavelength. We have selected an operating temperature of 120 K. The characterization effort will take place in our detector-testing laboratory at the University of Wisconsin-Madison. The laboratory is equipped with a test dewar, vacuum system, temperature controller, monochromator, and warm detector test enclosure. We will measure detector performance characteristics such as readout noise, gain, dark current, linearity, quantum efficiency, and persistence, and develop calibration strategies. Persistence could have a substantial impact on the spectrograph's science data, and therefore, the development of mitigation techniques for this effect will be emphasized.

Citation Download Citation

Ryan L. Doering, Andrew I. Sheinis, Donald J. Thielman, Marsha J. Wolf, Kurt P. Jaehnig, and Michael P. Smith "Characterizing the Robert Stobie Spectrograph's near-infrared detector", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77356Y (20 July 2010); https://doi.org/10.1117/12.857935

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