南华大学学报（自然科学版）2023，Vol.37Issue(5)：52-55,74,5.DOI:10.19431/j.cnki.1673-0062.2023.05.008
反应堆中子倍增特性分析及标定技术研究
Analysis of Neutron Multiplication Characteristics of Reactors and Study on Calibration Technique
高志宇 1黄有骏 1罗庭芳 1孙琦 1龚涛波1
作者信息
- 1. 中国核动力研究设计院 核反应堆系统设计技术重点实验室,四川 成都 610041
- 折叠
摘要
Abstract
Aiming at calibration of reactor period measurement for reactor nuclear measuring instrumentation,the neutron multiplication characteristics of reactors were stud-ied from the aspcet of theoretical derivation and verification of real stack data,and it was determined that signals with exponential variation laws can characterize the change charac-teristics of reactor neutron fluence rate over time.In order to fully calibrate the reactor pe-riod measurement performance of nuclear measurement instruments,considering the neutron detectors output signal weakly,it proposed a reactor period signal simulation scheme based on digital technology.The scheme includes both hardware and software as-pects,identifying key issues,and designing solutions to high-precision timing and weak signal output issues.At the same time,the calibration method was studied,by which the reactor period signal output performance was tested.Within the range of reactor period val-ues from 2 s to 999 s,seven values were selected for testing,and the maximum absolute value of the test deviation was 0.45%.关键词
反应堆周期/信号发生/标定技术Key words
reactor period/signal generation/calibration technology分类
能源科技引用本文复制引用
高志宇,黄有骏,罗庭芳,孙琦,龚涛波..反应堆中子倍增特性分析及标定技术研究[J].南华大学学报（自然科学版）,2023,37(5):52-55,74,5.
