Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM

After the successful construction and operation experience of the 10 MW high-temperature gas-cooled reactor (HTR-10), a high-temperature gas-cooled pebble-bed modular (HTR-PM) demonstration plant is under construction in Shidao Bay, Rongcheng City, Shandong province, China. An online gross γ monitor...

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Main Authors: Mengqi Lou, Liguo Zhang, Feng Xie, Jianzhu Cao, Jiejuan Tong, Weirong Liu, Yong Wang
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Science and Technology of Nuclear Installations
Online Access:http://dx.doi.org/10.1155/2018/5808352
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author Mengqi Lou
Liguo Zhang
Feng Xie
Jianzhu Cao
Jiejuan Tong
Weirong Liu
Yong Wang
author_facet Mengqi Lou
Liguo Zhang
Feng Xie
Jianzhu Cao
Jiejuan Tong
Weirong Liu
Yong Wang
author_sort Mengqi Lou
collection DOAJ
description After the successful construction and operation experience of the 10 MW high-temperature gas-cooled reactor (HTR-10), a high-temperature gas-cooled pebble-bed modular (HTR-PM) demonstration plant is under construction in Shidao Bay, Rongcheng City, Shandong province, China. An online gross γ monitoring instrument has been designed and placed at the exit of the helium purification system (HPS) of HTR-PM and is used to detect the activity concentration in the primary circuit after purification. The source terms in the primary loop of HTR-PM and the helium purification process were described. The detailed configuration of the gross γ monitoring instrument was presented in detail. The Monte Carlo method was used to simulate the detection efficiency of the monitoring system. Since the actual source terms in the primary loop of HTR-PM may be different than the current design values, a sensitivity analysis of the detection efficiency was implemented based on different relative proportions of the nuclides. The accuracy and resolution of the NaI(Tl) detector were discussed as well.
format Article
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institution Kabale University
issn 1687-6075
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language English
publishDate 2018-01-01
publisher Wiley
record_format Article
series Science and Technology of Nuclear Installations
spelling doaj-art-ced27bb2bd4f4a0f93999e2f3bfd96ec2025-02-03T01:09:28ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832018-01-01201810.1155/2018/58083525808352Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PMMengqi Lou0Liguo Zhang1Feng Xie2Jianzhu Cao3Jiejuan Tong4Weirong Liu5Yong Wang6Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaInstitute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, ChinaChina Nuclear Power Engineering Co., Ltd., Beijing 100840, ChinaChina Nuclear Power Engineering Co., Ltd., Beijing 100840, ChinaAfter the successful construction and operation experience of the 10 MW high-temperature gas-cooled reactor (HTR-10), a high-temperature gas-cooled pebble-bed modular (HTR-PM) demonstration plant is under construction in Shidao Bay, Rongcheng City, Shandong province, China. An online gross γ monitoring instrument has been designed and placed at the exit of the helium purification system (HPS) of HTR-PM and is used to detect the activity concentration in the primary circuit after purification. The source terms in the primary loop of HTR-PM and the helium purification process were described. The detailed configuration of the gross γ monitoring instrument was presented in detail. The Monte Carlo method was used to simulate the detection efficiency of the monitoring system. Since the actual source terms in the primary loop of HTR-PM may be different than the current design values, a sensitivity analysis of the detection efficiency was implemented based on different relative proportions of the nuclides. The accuracy and resolution of the NaI(Tl) detector were discussed as well.http://dx.doi.org/10.1155/2018/5808352
spellingShingle Mengqi Lou
Liguo Zhang
Feng Xie
Jianzhu Cao
Jiejuan Tong
Weirong Liu
Yong Wang
Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM
Science and Technology of Nuclear Installations
title Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM
title_full Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM
title_fullStr Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM
title_full_unstemmed Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM
title_short Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM
title_sort design of the online gross γ monitoring instrument at the exit of the helium purification system in htr pm
url http://dx.doi.org/10.1155/2018/5808352
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