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Proceedings Paper

Hyper Suprime-Cam: development of the CCD readout electronics
Author(s): Hidehiko Nakaya; Tomohisa Uchida; Hironao Miyatake; Hiroki Fujimori; Sogo Mineo; Hiroaki Aihara; Hisanori Furusawa; Yukiko Kamata; Hiroshi Karoji; Satoshi Kawanomoto; Yutaka Komiyama; Satoshi Miyazaki; Tomoki Morokuma; Yoshiyuki Obuchi; Yuki Okura; Manobu Tanaka; Yoko Tanaka; Fumihiro Uraguchi; Yosuke Utsumi
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Paper Abstract

Hyper Suprime-Cam (HSC) employs 116 of 2k×4k CCDs with 464 signal outputs in total. The image size exceeds 2 GBytes, and the data can be readout every 10 seconds which results in the data rate of 210 Mbytes / sec. The data is digitized to 16-bit. The readout noise of the electronics at the readout time of 20 seconds is ~0.9 ADU, and the one with CCD is ~1.5 ADU which corresponds to ~4.5 e. The linearity error fits within ± 0.5 % up to 150,000 e. The CCD readout electronics for HSC was newly developed based on the electronics for Suprime-Cam. The frontend electronics (FEE) is placed in the vacuum dewar, and the backend electronics (BEE) is mounted on the outside of the dewar on the prime focus unit. The FEE boards were designed to minimize the outgas and to maximize the heat transfer efficiency to keep the vacuum of the dewar. The BEE boards were designed to be simple and small as long as to achieve the readout time within 10 seconds. The production of the system has been finished, and the full set of the boards are being tested with several CCDs installed in the HSC dewar. We will show the system design, performance, and the current status of the development.

Paper Details

Date Published: 15 July 2010
PDF: 11 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77352P (15 July 2010); doi: 10.1117/12.856853
Show Author Affiliations
Hidehiko Nakaya, National Astronomical Observatory of Japan (Japan)
Tomohisa Uchida, High Energy Accelerator Research Organization (Japan)
Hironao Miyatake, Univ. of Tokyo (Japan)
Hiroki Fujimori, Univ. of Tokyo (Japan)
Sogo Mineo, Univ. of Tokyo (Japan)
Hiroaki Aihara, Univ. of Tokyo (Japan)
Hisanori Furusawa, National Astronomical Observatory of Japan (Japan)
Yukiko Kamata, National Astronomical Observatory of Japan (Japan)
Hiroshi Karoji, National Astronomical Observatory of Japan (Japan)
Satoshi Kawanomoto, National Astronomical Observatory of Japan (Japan)
Yutaka Komiyama, National Astronomical Observatory of Japan (Japan)
Satoshi Miyazaki, National Astronomical Observatory of Japan (Japan)
Tomoki Morokuma, National Astronomical Observatory of Japan (Japan)
Yoshiyuki Obuchi, National Astronomical Observatory of Japan (Japan)
Yuki Okura, National Astronomical Observatory of Japan (Japan)
Manobu Tanaka, High Energy Accelerator Research Organization (Japan)
Yoko Tanaka, National Astronomical Observatory of Japan (Japan)
Fumihiro Uraguchi, National Astronomical Observatory of Japan (Japan)
Yosuke Utsumi, National Astronomical Observatory of Japan (Japan)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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