摘要
针对新型单球多计数器高能中子探头,本文介绍一种满足该探头信号处理要求的核电子学系统设计方案。该电子学系统由放大电路、滤波成形电路、幅度甄别电路、多路脉冲计数器、功能控制电路和电源管理等部分组成,能够满足新型中子剂量(率)仪的功能要求,实现该新型中子剂量(率)仪的信号采集、剂量(率)计算等功能。
Background： A single sphere moderator and high sensitivity multi-counter （SMMC） is designed for portable neutron dosimeter. Purpose： In order to use the SMMC for practical application, the design of the electronics system is required to satisfy the requirement of the signal processing of SMMC. Methods： The system was mainly composed of the amplifier circuits, nuclear pulse shaped circuit, pulse amplitude discriminate circuits, instrument control circuit and power management circuit. Each of these components was designed and implemented for experimental evaluation. Results： Experimental results show that this electronic system could work stably and satisfy the design requirements. Conclusion： The electronics system could satisfy the function requirements of the new neutron dosimeter. The main functions of signal acquisition and amplifying, pulse discrimination, counting, instrument control, etc. were realized by the system.
出处
《核技术》
CAS
CSCD
北大核心
2014年第11期29-34,共6页
Nuclear Techniques
关键词
中子探测器
放大电路
复杂可编程逻辑器件
MSP430单片机
Neutron detector, Amplification circuit, Complex Programmable Logic Device （CPLD）, MSP430 microcontroller
