24 September 2012 Hyper Suprime-Cam: implementation and performance of the cryogenic dewar
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Abstract
Hyper Suprime-Cam (HSC) is a next generation wide field optical camera developed for F/2 prime focus of the 8.2 m Subaru telescope. The focal plane is about 600 mm in diameter where 116 CCDs (2k4k 15 micron square each) are arranged and cooled down to -100°C. The HSC CCD cryostat system design is presented by Komiyama et al. (2010). Since then, we made detail designs of the components, manufactured them and assembled the dewar. This paper presents the actual performance of the system including flatness and parallelism of the SiC cold plate, stability of its temperature, the amount of out-gassing.
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Yoshiyuki Obuchi, Yoshiyuki Obuchi, Yutaka Komiyama, Yutaka Komiyama, Yukiko Kamata, Yukiko Kamata, Satoshi Kawanomoto, Satoshi Kawanomoto, Satoshi Miyazaki, Satoshi Miyazaki, Tomoki Morokuma, Tomoki Morokuma, Hidehiko Nakaya, Hidehiko Nakaya, Fumihiro Uraguchi, Fumihiro Uraguchi, Yosuke Utsumi, Yosuke Utsumi, } "Hyper Suprime-Cam: implementation and performance of the cryogenic dewar", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84466Q (24 September 2012); doi: 10.1117/12.926961; https://doi.org/10.1117/12.926961
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