用于微光探测器的天文杜瓦  

Cooled dewars for astronomical detector application

作　　者：葛瑞宏[1] 毕龙生[1] 曹慎诚 聂裕民 

机构地区：[1]兰州物理研究所

出　　处：《真空与低温》1994年第3期140-144,共5页Vacuum and Cryogenics

摘　　要：综述了天文用ＣＣＤ微光探测器对天文杜瓦的要求，介绍了研制的ＴＷＤ型杜瓦的特点和试验情况。试验结果表明，在无探测腔时，Ⅱ型和Ⅲ型杜瓦容器的技术指标分别达到：有效容积２．５Ｌ和１．２５Ｌ；质量２．０５ｋｇ和３．０２ｋｇ；液氮保存期１１０ｈ和１１６ｈ。真空寿命达２年以上。接探测腔后，Ⅱ型杜瓦液氮保存期为４０ｈ；ＣＣＤ冷盘温度可达到－１００～－１２０℃。This article stimup application in astronomical CCD detector demand for cryogenically cooled dowars.Showod was the dewars of develop-ment general situation in China,the intronduction of deveiop type TWD de-wars characteristic and test cirumstance.Test result shows,on without det-ector condition that,Mark Ⅱ and Mark Ⅲ dewars vessel achieve of technical targets as follow:effective volun1e 2.5L and 1.25L;mass 2.05kg and 3.02kg;preserve liquid nitrgen time:110h and 116h. Vacuume keep at two years. In connect with detector,Mark Ⅱ dewars preserve for liquid nitrogen time is 40 horus;CCD cold plate.achieve of -100～-123℃ temperature.

关 键 词：天文杜瓦 CCD探测器 低温 真空 微光探测 

分 类 号：TN223[电子电信—物理电子学] TL814[核科学技术—核技术及应用]