Development of a prototype of the Tomo-e Gozen wide-field CMOS camera
Development of a prototype of the Tomo-e Gozen wide-field CMOS camera
复制标题
开发 Tomo-e Gozen 广角 CMOS 相机原型
DOI：
10.1117/12.2231259
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Shigeyuki; Shigeyama Toshikazu et al. (31番目/43人)
中科院分区：
文献类型：
--
作者：
Sako;Shigeyuki; Shigeyama Toshikazu et al. (31番目/43人)
The Tomo-e Gozen is an extremely wide-field optical camera for the Kiso 1.0-m Schmidt telescope. It is capable of taking consecutive frames with a field-of-view of 20 deg2and a sub-second time-resolution, which are achieved by 84 chips of 2k×1k CMOS sensor. This camera adopts unconventional designs including a lightweight structure, a nonvacuumed and naturally-air cooled system, front-side-illuminated CMOS sensors with microlens arrays, a sensor alignment along a spherical focal plane of the telescope, and massive readout electronics. To develop technical components necessary for the Tomo-e Gozen and confirm a feasibility of its basic design, we have developed a prototype-model (PM) of the Tomo-e Gozen prior to the final-model (FM). The Tomo-e PM is equipped with eight chips of the CMOS sensor arranged in a line along the RA direction, covering a sky area of 2.0 deg2. The maximum frame rate is 2 fps. The total data production rate is 80 MByte sec-1at 2 fps, corresponding to approximately 3 TByte night-1. After laboratory testing, we have successfully obtained consecutive movie data at 2 fps with the Tomo-e PM in the first commissioning run conducted in the end of 2015.
