HyperSuprime: electronics

摘要

A next generation wide-field camera HyperSuprime proposed for the 8.2m Subaru telescope is planed to employ 176 2kx4k CCDs to cover a 2 degrees diameter field of view. The readout electronics is one of important parts of the instrument. The CCD has four signal outputs, and all of the CCDs are readout in 10 to 20 seconds. The total image size becomes 2.8 Gbytes which should be transferred to the observing room within the readout time. Furthermore, the instrument will be mounted on the prime focus of the telescope. To decrease the size, weight, and power consumption are important themes for HyperSuprime. We will present our effort and the possibilities discussed to realize the readout electronics.