真空和辐射环境下的高低温系统  

Cryogenic and high temperature system in vacuum and radiation environment

作　　者：贺朝会[1] 耿斌[1] 惠卫东 黄芳[1] 王燕萍[1] 李国政[1] 

机构地区：[1]西北核技术研究所,陕西西安69信箱13分箱710613 [2]陕西迪科科技有限公司,陕西西安710048

出　　处：《核电子学与探测技术》2004年第3期272-274,271,共4页Nuclear Electronics & Detection Technology

摘　　要：研究了在一定真空度(1Pa左右)和辐照环境(裂变碎片104s-1,中子104s-1)中获得高低温的方法,特别是低温(-55～20℃)的实现技术。研制出适应于锎源辐照测量系统的高低温装置及测量控制系统,温度范围:-100～125℃,控制精度:高温±1℃,低温±3℃。应用该系统开展了半导体存储器的重离子单粒子翻转截面随温度变化关系的研究,在国内首次得到了重离子单粒子翻转截面随温度变化的关系曲线。The approaches to obtain cryogenic and high temperature in vacuum (about 1Pa) and radiation environment (10~4 fissions per second for ^(252)Cf source accompanied by 10~4 neutrons per second) are investigated, especially on techniques to obtain cryogenic temperature (-55～20℃). Cryogenic and high temperature apparatus is established suitable for ^(252)Cf source radiation measurement system. Temperature measurement and control system are developed. The range of temperature controlled is from -100 to 125℃ and the precision controlled is ±1℃ at high temperature, ±3℃ at cryogenic temperature. Experiment about relationship between heavy ion single event upset cross-section and temperature is performed on semiconductor memories and the relationship is first achieved in China.

关 键 词：低温系统 高温系统 单粒子翻转 真空环境 辐射环境 锎源 

分 类 号：TL8[核科学技术—核技术及应用]