16通道剂量率在线检测系统的软硬件设计  

The Software and Hardware Design of a 16 Channel Online Dose Rate Monitoring System

作　　者：唐文娟[1,2,3] 颜永红[1] 杨世明[2,3] 李小男[2,3] 闵建[2,3] 

机构地区：[1]湖南大学物理与微电子科学学院,湖南长沙410082 [2]中国科学院高能物理研究所,北京100049 [3]核探测技术与核电子学重点实验室,北京100049

出　　处：《核电子学与探测技术》2011年第3期355-358,258,共5页Nuclear Electronics & Detection Technology

摘　　要：介绍了一种16通道剂量率在线检测系统的软硬件设计。探测器输出的数据经过前端的放大和模数转换后,经FPGA传至微处理器中,进行低频滤波、转换计算、温度补偿、台阶扣除等处理,有效地修正了温度波动带来的暗电流变化,得到了足够精确的瞬时剂量率值。The software and hardware design of a 16 channel online dose rate monitoring system is presented. After being amplified and A/D converted,the output signal of the sensors was sent to a microprocessor through an FPGA,where the low-frequency filter,calculation,temperature compensation and pedestal deduction were accomplished.Such steps corrected the variation of dark current dependent on temperature fluctuations in a effective way,and finally the instantaneous dose rate results with enough precise were obtained.

关 键 词：PIN-Diode 剂量率在线检测 FPGA MCU 嵌入式UCLINUX 

分 类 号：TL814[核科学技术—核技术及应用]