5×1024×10高速核辐射能谱获取系统研制  

Development of multi-channels and high speed energy spectra acquisition for measurement nuclear radiation

作　　者：杨进蔚[1] 潘大金[1] 张炜[1] 曾庆希[1] 曾建勇[1] 

机构地区：[1]核工业西南物理研究院,四川成都432信箱610041

出　　处：《核电子学与探测技术》2003年第3期197-200,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(10175021);核科学基金(J95C03007)资助

摘　　要：在磁约束聚变实验装置的物理实验中,为了测量高温等离子体辐射的某特定能量区域的X射线或其他核辐射能谱的时、空分布,需要在托卡马克的极向和环向方向布置多台X射线探测器,每次放电可同时获得数十个能谱,为了不牺牲能谱中的重要信息(如线辐射),以及能量分辨的需要,要求每个能谱有1024道,每个谱采集的时间分为:40、80、160、240ms,可自由设定,每道容量16位,每次放电可同时获得50个能谱,可扩展到80个能谱。A new type of multichannel energy acquisition system in high speed for measurement of nuclear radiation is described in this paper. This system consists of five channels including five ADCs, five buffer storages and one interface board which connects with PC computer. The time resolutions are 40, 80 and 160ms respectively which may be selective, 50 or 80 spectra can be obtained by this system in energy discharge of Tokamak. Therefore, the measurement of spatial and temporal distribution of nuclear radiation energy spectrum can be carried out .

关 键 词：高速核辐射能谱获取系统 磁约束聚变实验装置 托卡马克装置 X射线 快速缓冲存储器 核辐射能谱 测量 

分 类 号：TL631.24[核科学技术—核技术及应用]