Characterizing the Robert Stobie Spectrograph's near-infrared detector

Type Conference Paper
Names Ryan L. Doering, Andrew I. Sheinis, Donald J. Thielman, Marsha J. Wolf, Kurt P. Jaehnig, Michael P. Smith
Conference Name Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Volume 7735
Pages 228
Date July 1, 2010
Library Catalog NASA ADS
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.
UW-Madison Astronomy Home