Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device
The critical experimental device with spent fuel can be used to carry out critical experimental research on spent fuel storage. Considering its high radioactivity，the best way to carry out the experiment is to take the method of extrapolating water level to criticality. At present, the critical expe...
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| Format: | Article |
| Language: | English |
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Editorial Board of Atomic Energy Science and Technology
2022-01-01
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| Series: | Yuanzineng kexue jishu |
| Subjects: | |
| Online Access: | https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0247 |
| _version_ | 1811305107145359360 |
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| author | CHEN Shanfa;CHEN Xiaoliang;XU Jianping;ZHANG Zhifeng;ZHAO Jiecheng;CHEN Xiaoxian |
| author_facet | CHEN Shanfa;CHEN Xiaoliang;XU Jianping;ZHANG Zhifeng;ZHAO Jiecheng;CHEN Xiaoxian |
| author_sort | CHEN Shanfa;CHEN Xiaoliang;XU Jianping;ZHANG Zhifeng;ZHAO Jiecheng;CHEN Xiaoxian |
| collection | DOAJ |
| description | The critical experimental device with spent fuel can be used to carry out critical experimental research on spent fuel storage. Considering its high radioactivity，the best way to carry out the experiment is to take the method of extrapolating water level to criticality. At present, the critical experimental device with spent fuel has not been built yet, thus the simulation experiment of water level extrapolation is carried out in a critical experimental device with similar core structure and physical characteristics, which is a uranium rod grid device with light water as moderator. In this experiment, the normal extrapolation curve cannot be obtained because of the shielding effect of water deepens with the rise of water level. In this paper, the extrapolation process was simulated by Monte Carlo program, and the characteristics of neutron count rate changing with water level were studied when the neutron source and detector were arranged in different relative positions, thus the optimal arrangement scheme of detector and neutron source was given. In addition, an extrapolation method with water level worth as extrapolation parameter was proposed, which eliminates the influence of uneven water level coefficient when extrapolating to criticality with water level, and makes the extrapolation result more accurate. |
| first_indexed | 2024-04-13T08:19:22Z |
| format | Article |
| id | doaj.art-a10a43a4fda74fc1b907bd6143d8428e |
| institution | Directory Open Access Journal |
| issn | 1000-6931 |
| language | English |
| last_indexed | 2024-04-13T08:19:22Z |
| publishDate | 2022-01-01 |
| publisher | Editorial Board of Atomic Energy Science and Technology |
| record_format | Article |
| series | Yuanzineng kexue jishu |
| spelling | doaj.art-a10a43a4fda74fc1b907bd6143d8428e2022-12-22T02:54:41ZengEditorial Board of Atomic Energy Science and TechnologyYuanzineng kexue jishu1000-69312022-01-015618086Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental DeviceCHEN Shanfa;CHEN Xiaoliang;XU Jianping;ZHANG Zhifeng;ZHAO Jiecheng;CHEN Xiaoxian 0Division of Reactor Engineering Technology Research, China Institute of Atomic Energy, Beijing 102413, ChinaThe critical experimental device with spent fuel can be used to carry out critical experimental research on spent fuel storage. Considering its high radioactivity，the best way to carry out the experiment is to take the method of extrapolating water level to criticality. At present, the critical experimental device with spent fuel has not been built yet, thus the simulation experiment of water level extrapolation is carried out in a critical experimental device with similar core structure and physical characteristics, which is a uranium rod grid device with light water as moderator. In this experiment, the normal extrapolation curve cannot be obtained because of the shielding effect of water deepens with the rise of water level. In this paper, the extrapolation process was simulated by Monte Carlo program, and the characteristics of neutron count rate changing with water level were studied when the neutron source and detector were arranged in different relative positions, thus the optimal arrangement scheme of detector and neutron source was given. In addition, an extrapolation method with water level worth as extrapolation parameter was proposed, which eliminates the influence of uneven water level coefficient when extrapolating to criticality with water level, and makes the extrapolation result more accurate.https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0247critical experimental deviceneutron counting ratemethod of extrapolating water level to criticality |
| spellingShingle | CHEN Shanfa;CHEN Xiaoliang;XU Jianping;ZHANG Zhifeng;ZHAO Jiecheng;CHEN Xiaoxian Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device Yuanzineng kexue jishu critical experimental device neutron counting rate method of extrapolating water level to criticality |
| title | Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device |
| title_full | Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device |
| title_fullStr | Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device |
| title_full_unstemmed | Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device |
| title_short | Study on Optimization of Method of Extrapolating Water Level to Criticality in Critical Experimental Device |
| title_sort | study on optimization of method of extrapolating water level to criticality in critical experimental device |
| topic | critical experimental device neutron counting rate method of extrapolating water level to criticality |
| url | https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0247 |
| work_keys_str_mv | AT chenshanfachenxiaoliangxujianpingzhangzhifengzhaojiechengchenxiaoxian studyonoptimizationofmethodofextrapolatingwaterleveltocriticalityincriticalexperimentaldevice |