Speaker
Mr
Hironao Miyatake
(University of Tokyo)
Description
Hyper Suprime-Cam (HSC) is a 1 Giga pixel CCD camera for a wide-field galaxy survey at the Subaru 8-m telescope. It will be mounted on the prime focus of the Subaru telescope and is scheduled to receive its first light in 2011. The primary science goals include a measurement of the equation of state parameter of dark energy based on the weak lensing survey over ~2,000 square degrees. HSC has 1.5-degree-diameter field of view, 7 times larger than that of its predecessor Suprime-Cam. It consists of a large corrector lens system and a focal plane equipped with 116 pieces of 2k x 4k fully depleted CCDs. Combined with the superb image quality and large aperture of Subaru telescope, the survey using HSC can cover a cosmological volume and reach the limiting magnitude of at least one magnitude fainter than the other surveys conducted using 4-m class telescopes.
The readout electronics of HSC consist of two parts: one is the analog front-end electronics (FEE) and the other is the digital back-end Electronics (BEE). The FEE is placed in a vacuum dewar together with the CCDs, and processes the analog CCD signal into 16-bit digital data. The BEE is small and light enough to be integrated into the camera unit, and employs three links of Gigabit Ethernet to readout a 2.3-GByte single exposure within 10 seconds at fast readout operation.
We present the overview of HSC and describe its readout electronics including the detail of BEE.
Author
Mr
Hironao Miyatake
(University of Tokyo)
Co-authors
Dr
Hidehiko Nakaya
(National Astronomical Observatory of Japan)
Prof.
Hiroaki Aihara
(University of Tokyo)
Mr
Hiroki Fujimori
(University of Tokyo)
Prof.
Satoshi Miyazaki
(National Astronomical Observatory of Japan)
Mr
Sogo Mineo
(University of Tokyo)
Dr
Tomohisa Uchida
(High Energy Accelerator Research Organization)
