23 July 2014 Characterization and optimization for detector systems of IGRINS
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Abstract
IGRINS (Immersion GRating INfrared Spectrometer) is a high resolution wide-band infrared spectrograph developed by the Korea Astronomy and Space Science Institute (KASI) and the University of Texas at Austin (UT). This spectrograph has H-band and K-band science cameras and a slit viewing camera, all three of which use Teledyne's λc~2.5μm 2k×2k HgCdTe HAWAII-2RG CMOS detectors. The two spectrograph cameras employ science grade detectors, while the slit viewing camera includes an engineering grade detector. Teledyne's cryogenic SIDECAR ASIC boards and JADE2 USB interface cards were installed to control those detectors. We performed experiments to characterize and optimize the detector systems in the IGRINS cryostat. We present measurements and optimization of noise, dark current, and referencelevel stability obtained under dark conditions. We also discuss well depth, linearity and conversion gain measurements obtained using an external light source.
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Ueejeong Jeong, Ueejeong Jeong, Moo-Young Chun, Moo-Young Chun, Jae Sok Oh, Jae Sok Oh, Chan Park, Chan Park, In-Soo Yuk, In-Soo Yuk, Heeyoung Oh, Heeyoung Oh, Kang-Min Kim, Kang-Min Kim, Kyeong Yeon Ko, Kyeong Yeon Ko, Michael D. Pavel, Michael D. Pavel, Young Sam Yu, Young Sam Yu, Daniel T. Jaffe, Daniel T. Jaffe, } "Characterization and optimization for detector systems of IGRINS", Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 91541X (23 July 2014); doi: 10.1117/12.2055589; https://doi.org/10.1117/12.2055589
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