Flux Density Distribution Measurement in Annular Fuel Reactor

The relative neutron flux density distribution is one of the essential physical parameters of the reactor. Measuring the relative neutron flux density distribution of the annular fuel zero-power reactor core has guiding significance for understanding the physical characteristics of the annular fuel...

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Main Author: ZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng
Format: Article
Language:English
Published: Editorial Board of Atomic Energy Science and Technology 2022-01-01
Series:Yuanzineng kexue jishu
Subjects:
Online Access:https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0254
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author ZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng
author_facet ZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng
author_sort ZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng
collection DOAJ
description The relative neutron flux density distribution is one of the essential physical parameters of the reactor. Measuring the relative neutron flux density distribution of the annular fuel zero-power reactor core has guiding significance for understanding the physical characteristics of the annular fuel core reactor and conducting safety analysis. In this paper, the γ activity of the gold foil at different positions on the outer surface of the fuel cell after irradiation was measured by foil activation method under polygonal loading of annular fuel core. The axial and radial relative neutron flux density distributions of fuel cell at different positions were obtained, and the measured values were compared with the values calculated by Monte Carlo theory. The results show that the maximum relative deviation between experimental measurement and theoretical calculation is within 12%. The measurement results of relative neutron flux density distribution are in line with the measure design expectations. The existing Monte Carlo analysis methods can better analyze the axial flux density distribution of the components in the reactor. This study provides essential data support for the engineering application of annular fuel.
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spelling doaj.art-d4c1cf5ae6a041b0ad38a6c84fc083b52022-12-22T02:54:41ZengEditorial Board of Atomic Energy Science and TechnologyYuanzineng kexue jishu1000-69312022-01-01561 121126Flux Density Distribution Measurement in Annular Fuel ReactorZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng 0Division of Reactor Engineering Technology Research, China Institute of Atomic Energy, Beijing 102413, ChinaThe relative neutron flux density distribution is one of the essential physical parameters of the reactor. Measuring the relative neutron flux density distribution of the annular fuel zero-power reactor core has guiding significance for understanding the physical characteristics of the annular fuel core reactor and conducting safety analysis. In this paper, the γ activity of the gold foil at different positions on the outer surface of the fuel cell after irradiation was measured by foil activation method under polygonal loading of annular fuel core. The axial and radial relative neutron flux density distributions of fuel cell at different positions were obtained, and the measured values were compared with the values calculated by Monte Carlo theory. The results show that the maximum relative deviation between experimental measurement and theoretical calculation is within 12%. The measurement results of relative neutron flux density distribution are in line with the measure design expectations. The existing Monte Carlo analysis methods can better analyze the axial flux density distribution of the components in the reactor. This study provides essential data support for the engineering application of annular fuel.https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0254annular fuelneutron flux density distributionactivation method
spellingShingle ZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng
Flux Density Distribution Measurement in Annular Fuel Reactor
Yuanzineng kexue jishu
annular fuel
neutron flux density distribution
activation method
title Flux Density Distribution Measurement in Annular Fuel Reactor
title_full Flux Density Distribution Measurement in Annular Fuel Reactor
title_fullStr Flux Density Distribution Measurement in Annular Fuel Reactor
title_full_unstemmed Flux Density Distribution Measurement in Annular Fuel Reactor
title_short Flux Density Distribution Measurement in Annular Fuel Reactor
title_sort flux density distribution measurement in annular fuel reactor
topic annular fuel
neutron flux density distribution
activation method
url https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0254
work_keys_str_mv AT zhanggengliufengxiazhaodongzhuqingfuzhangzhifeng fluxdensitydistributionmeasurementinannularfuelreactor