Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading

To meet the requirements of safety control during the fuel loading and refueling of nuclear reactors, a reactor first loading monitoring system was developed, and the related mechanical structure and electrical structure design and manufacturing of the system were completed including 3He proportiona...

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Main Author: LIU Yang;HE Gaokui;TIAN Huayang;ZHAO Jiangbin
Format: Article
Language:zho
Published: Editorial Board of Journal of Isotopes 2022-04-01
Series:Journal of Isotopes
Subjects:
Online Access:http://www.tws.org.cn/CN/10.7538/tws.2021.youxian.023
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author LIU Yang;HE Gaokui;TIAN Huayang;ZHAO Jiangbin
author_facet LIU Yang;HE Gaokui;TIAN Huayang;ZHAO Jiangbin
author_sort LIU Yang;HE Gaokui;TIAN Huayang;ZHAO Jiangbin
collection DOAJ
description To meet the requirements of safety control during the fuel loading and refueling of nuclear reactors, a reactor first loading monitoring system was developed, and the related mechanical structure and electrical structure design and manufacturing of the system were completed including 3He proportional probe and pulse counter device, etc. The probe assembly adopts a new structure. The mechanical structure is a combination of a bridle structure waterproof connector, a waterproof tube and a load-bearing multi-core shielded cable. A fast charge sensitive preamplifier and a high-voltage module were integrated in the probe. The pulse counting device consist of several NIM modular plug-in units is mounted on a NIM rack mounting unit and a cabinet. The system contains four measurement channels and an acousto-optic alarm channel, which can realize functions such as counting rate display and over-threshold acousto-optic alarm. The tests show the system meets the requirements for neutron flux rate monitoring during nuclear reactor fuel loading and has been applied to unit 5 and unit 6 of Hongyanhe Nuclear Power Plant.
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spelling doaj.art-b888afb482fa432a824bd2b9d9cfdf412022-12-22T03:41:56ZzhoEditorial Board of Journal of IsotopesJournal of Isotopes1000-75122022-04-0135298103Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel LoadingLIU Yang;HE Gaokui;TIAN Huayang;ZHAO Jiangbin0China Institute of Atomic EnergyTo meet the requirements of safety control during the fuel loading and refueling of nuclear reactors, a reactor first loading monitoring system was developed, and the related mechanical structure and electrical structure design and manufacturing of the system were completed including 3He proportional probe and pulse counter device, etc. The probe assembly adopts a new structure. The mechanical structure is a combination of a bridle structure waterproof connector, a waterproof tube and a load-bearing multi-core shielded cable. A fast charge sensitive preamplifier and a high-voltage module were integrated in the probe. The pulse counting device consist of several NIM modular plug-in units is mounted on a NIM rack mounting unit and a cabinet. The system contains four measurement channels and an acousto-optic alarm channel, which can realize functions such as counting rate display and over-threshold acousto-optic alarm. The tests show the system meets the requirements for neutron flux rate monitoring during nuclear reactor fuel loading and has been applied to unit 5 and unit 6 of Hongyanhe Nuclear Power Plant.http://www.tws.org.cn/CN/10.7538/tws.2021.youxian.023nuclear reactorfirst fuel loadingfast charge sensitive preamplifier
spellingShingle LIU Yang;HE Gaokui;TIAN Huayang;ZHAO Jiangbin
Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading
Journal of Isotopes
nuclear reactor
first fuel loading
fast charge sensitive preamplifier
title Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading
title_full Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading
title_fullStr Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading
title_full_unstemmed Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading
title_short Development of in-Core Neutron Fluence Rate Monitoring Device for Nuclear Reactor First Fuel Loading
title_sort development of in core neutron fluence rate monitoring device for nuclear reactor first fuel loading
topic nuclear reactor
first fuel loading
fast charge sensitive preamplifier
url http://www.tws.org.cn/CN/10.7538/tws.2021.youxian.023
work_keys_str_mv AT liuyanghegaokuitianhuayangzhaojiangbin developmentofincoreneutronfluenceratemonitoringdevicefornuclearreactorfirstfuelloading