Development of neutron flux measurement electronic system for fusion reactors

doi:10.16568/j.0254-6086.202504002

Nuclear Fusion and Plasma Physics ›› 2025, Vol. 45 ›› Issue (4): 381-387.DOI: 10.16568/j.0254-6086.202504002

• Nuclear Fusion Engineering • Previous Articles Next Articles

Development of neutron flux measurement electronic system for fusion reactors

WEI Ling-feng1, ZHAO Li1, YUAN Guo-liang1, YANG Qing-wei1,LIU Zi-hao2, ZHU Ren-jie2, WEN Xin-cheng2

(1. Southwestern Institute of Physics, Chengdu 610041; 2. University of Science and Technology of China, Hefei 230026)

Received:2022-10-01 Revised:2025-10-13 Online:2025-12-15 Published:2025-12-12

聚变堆中子通量测量电子学系统研制

魏凌峰 1，赵丽*1，袁国梁 1，杨青巍 1，刘子豪 2，朱人杰 2，温昕澄 2

(1. 核工业西南物理研究院，成都 610041；2. 中国科学技术大学, 合肥 230026)

作者简介:魏凌峰(1989-)，男，四川达州人，副研究员，博士，主要从事托卡马克实验及等离子体诊断研究。
基金资助:
高分辨中子产额和中子能量探测阵列技术研究(2022YFE03080003)。

Abstract

Abstract: A neutron flux monitor (NFM) system is developed for fusion reactors with the operation parameters of International Thermonuclear Experimental Reactor (ITER), which can adapt to a wide range of neutron yields and has a certain radiation resistance capability. This system utilizes fission chambers to detect fusion neutrons and the back-end electronics are mainly composed of pre-amplifiers, signal processing units, high stability program-controlled power supplies, and temperature monitoring units. At present, the prototype of NFM system electronics has been developed, realizing the entire process of signal conditioning, discrimination,sampling, and processing. Partial testing work has been carried out on the HL-2A tokamak, and its result meets the design requirements.

Key words: Fusion reactor, Neutron flux monitor, Electronics

摘要： 针对在国际热核聚变实验堆(ITER)运行参数下的聚变堆中子通量测量，设计并研制了一套具备一定耐辐照能力的宽量程中子通量监测(NFM)系统。该系统采用裂变室对聚变中子进行探测，后端电子设备主要由前置放大器、信号处理单元、高稳定性程控电源和温度监测单元等组成。目前，NFM 系统电子学原型部件已完成研制，完成了信号调理、鉴别、采样和处理的全链路调试。在 HL-2A 装置上对该系统的验证实验结果与预期的一致，表明该系统满足设计要求。

关键词: 聚变堆, 中子通量监测, 电子学部件

CLC Number:

TL62+6

WEI Ling-feng, ZHAO Li, YUAN Guo-liang, YANG Qing-wei, LIU Zi-hao, ZHU Ren-jie, WEN Xin-cheng. Development of neutron flux measurement electronic system for fusion reactors[J]. Nuclear Fusion and Plasma Physics, 2025, 45(4): 381-387.

魏凌峰, 赵丽, 袁国梁, 杨青巍, 刘子豪, 朱人杰, 温昕澄 . 聚变堆中子通量测量电子学系统研制[J]. 核聚变与等离子体物理, 2025, 45(4): 381-387.

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Development of neutron flux measurement electronic system for fusion reactors

聚变堆中子通量测量电子学系统研制

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