Cooling the dark energy camera CCD array using a closed-loop two-phase liquid nitrogen system
Cooling the dark energy camera CCD array using a closed-loop two-phase liquid nitrogen system
复制标题
使用闭环两相液氮系统冷却暗能量相机 CCD 阵列
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
A. Zhao
中科院分区：
文献类型：
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作者：
H. Cease;D. Depoy;G. Derylo;H. Diehl;J. Estrada;B. Flaugher;K. Kuk;S. Kuhlmann;A. Lathrop;K. Schultz;R. J. Reinert;R. Schmitt;A. Stefanik;A. Zhao
暗能量相机（DECam）是CTIO布兰科4米望远镜的新宽视场主焦点成像仪。该仪器是一个3平方米。°的该相机的焦平面直径为45 cm，由62个2k × 4k CCD和12个2k × 2k CCD组成，为将于2011年在CTIO开始运行的暗能量调查而开发。DECam CCD阵列位于成像器容器内。焦板使用闭环液氮系统冷却。作为机械和冷却设计开发的一部分，一个全尺寸的原型成像船已经建成，目前正在用于多CCD读出测试。低温冷却系统和热控制的描述沿着冷却结果从原型相机。介绍了智利布兰科望远镜冷却系统的布置。
The Dark Energy Camera (DECam) is the new wide field prime-focus imager for the Blanco 4m telescope at CTIO. This instrument is a 3 sq. deg. camera with a 45 cm diameter focal plane consisting of 62 2k × 4k CCDs and 12 2k × 2k CCDs and was developed for the Dark Energy Survey that will start operations at CTIO in 2011. The DECam CCD array is inside the imager vessel. The focal plate is cooled using a closed loop liquid nitrogen system. As part of the development of the mechanical and cooling design, a full scale prototype imager vessel has been constructed and is now being used for Multi-CCD readout tests. The cryogenic cooling system and thermal controls are described along with cooling results from the prototype camera. The cooling system layout on the Blanco telescope in Chile is described.