基于晶体管测量的中子注量在线实时测量系统  

Online real-time measurement system based on the transistor measurement of neutron fluence

作　　者：杨善潮[1] 郭晓强[1] 林东生[1] 李斌[1] 李瑞宾[1] 白小燕[1] 马强[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《信息与电子工程》2012年第5期621-626,共6页information and electronic engineering

摘　　要：利用晶体管直流放大倍数的倒数与中子注量呈线性关系这一特点,使用晶体管作为在线中子注量测量的探测器,建立了以计算机、GPIB总线、矩阵开关、任意波形发生器、数字示波器等硬件为基础,基于LabVIEW软件平台的中子注量在线实时监测系统。在西安脉冲反应堆中子辐射场中,开展了标定实验研究,建立的中子注量在线实时监测系统实现了空间分布的中子注量实时测量,利用该套系统得到了XAPR和CFBR-Ⅱ的等效损伤系数。An on-line monitoring system of neutron fluence was established based on the understanding of the linear relationship between Δ1/β of transistor and neutron fluence.The hardware of this system consisted of computer,GPIB bus unit,matrix switch,function waveform generator and digital oscilloscope;while the software was built up by Labview program.The calibration tests were performed at the Xi'an TRIGA reactor.This system actualized an on-line test of neutron fluence in the radiation cavity.The equivalent damage coefficient of XAPR and CFBR-Ⅱ was obtained by using this test system.

关 键 词：位移效应 晶体管放大倍数 中子注量在线测量 虚拟仪器 

分 类 号：TN32[电子电信—物理电子学] TP274[自动化与计算机技术—检测技术与自动化装置]