Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique
Lead bismuth eutectic alloy (LBE:44.5 wt%Pb+55.5 wt%Bi) is an important coolant candidate for fourth-generation reactors due to its good physical and chemical properties. However, the risk of radioactive polonium radiation protection caused by liquid lead-bismuth alloy as the main coolant of the rea...
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KeAi Communications Co., Ltd.
2025-06-01
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| Series: | International Journal of Advanced Nuclear Reactor Design and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468605025000614 |
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| author | Feng Xu Yushou Song Size Chen Jinlong wang Guobing Yu Deyun Wen Dan Xiao Yong Guo Lei Ren |
| author_facet | Feng Xu Yushou Song Size Chen Jinlong wang Guobing Yu Deyun Wen Dan Xiao Yong Guo Lei Ren |
| author_sort | Feng Xu |
| collection | DOAJ |
| description | Lead bismuth eutectic alloy (LBE:44.5 wt%Pb+55.5 wt%Bi) is an important coolant candidate for fourth-generation reactors due to its good physical and chemical properties. However, the risk of radioactive polonium radiation protection caused by liquid lead-bismuth alloy as the main coolant of the reactor has become an important problem that must be paid attention to in the development of the lead-bismuth reactor. The 209Bi(n,γ)210gBi reaction is a key source term for 210Po generation in lead-bismuth reactors. Accurate measurement of the 209Bi(n,γ)210gBi cross section is important for assessing the risk of radioactive polonium release from lead-bismuth reactors. At present, the reaction cross section can be measured by the online method of directly measuring the cascade prompt gamma rays of the capture reaction or the offline method of measuring 210gBi decay product 210Po. To solve this problem, a210Po self-plating enrichment method based on isotope dilution α energy spectrometry with electrode movement is proposed. By optimizing the key conditions of the self-plating process, the enrichment rate of 210Po is effectively improved, which will help solve the problem of insufficient sensitivity of the direct measurement method of 209Bi(n,γ)210gBi low yield. The experimental results show that this technique is suitable for 209Bi(n,γ)210gBi post-processing measurement, and is of great significance for the study of neutron irradiation products of lead-bismuth eutectic alloys. |
| format | Article |
| id | doaj-art-71c0ac71dc3f41f697cf915a8a32c20e |
| institution | Matheson Library |
| issn | 2468-6050 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | International Journal of Advanced Nuclear Reactor Design and Technology |
| spelling | doaj-art-71c0ac71dc3f41f697cf915a8a32c20e2025-07-05T04:47:25ZengKeAi Communications Co., Ltd.International Journal of Advanced Nuclear Reactor Design and Technology2468-60502025-06-0172139146Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition techniqueFeng Xu0Yushou Song1Size Chen2Jinlong wang3Guobing Yu4Deyun Wen5Dan Xiao6Yong Guo7Lei Ren8College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China; Institute of Nuclear Energy Safety Technology, Heifei Institutes of Physical Science, Chinese Academy, Hefei, ChinaCollege of Nuclear Science and Technology, Harbin Engineering University, Harbin, China; Corresponding author.Institute of Nuclear Energy Safety Technology, Heifei Institutes of Physical Science, Chinese Academy, Hefei, China; Corresponding author.Anhui Radiation and Environment Supervision Station, Heifei, ChinaAnhui Radiation and Environment Supervision Station, Heifei, ChinaAnhui Radiation and Environment Supervision Station, Heifei, ChinaInstitute of Nuclear Energy Safety Technology, Heifei Institutes of Physical Science, Chinese Academy, Hefei, ChinaChina Nuclear Power Technology Research Institute, Shenzhen, ChinaInstitute of Nuclear Energy Safety Technology, Heifei Institutes of Physical Science, Chinese Academy, Hefei, ChinaLead bismuth eutectic alloy (LBE:44.5 wt%Pb+55.5 wt%Bi) is an important coolant candidate for fourth-generation reactors due to its good physical and chemical properties. However, the risk of radioactive polonium radiation protection caused by liquid lead-bismuth alloy as the main coolant of the reactor has become an important problem that must be paid attention to in the development of the lead-bismuth reactor. The 209Bi(n,γ)210gBi reaction is a key source term for 210Po generation in lead-bismuth reactors. Accurate measurement of the 209Bi(n,γ)210gBi cross section is important for assessing the risk of radioactive polonium release from lead-bismuth reactors. At present, the reaction cross section can be measured by the online method of directly measuring the cascade prompt gamma rays of the capture reaction or the offline method of measuring 210gBi decay product 210Po. To solve this problem, a210Po self-plating enrichment method based on isotope dilution α energy spectrometry with electrode movement is proposed. By optimizing the key conditions of the self-plating process, the enrichment rate of 210Po is effectively improved, which will help solve the problem of insufficient sensitivity of the direct measurement method of 209Bi(n,γ)210gBi low yield. The experimental results show that this technique is suitable for 209Bi(n,γ)210gBi post-processing measurement, and is of great significance for the study of neutron irradiation products of lead-bismuth eutectic alloys.http://www.sciencedirect.com/science/article/pii/S2468605025000614Lead-cooled fast reactor210Po209Bi(n,γ)210gBiSpontaneous electrodeposition |
| spellingShingle | Feng Xu Yushou Song Size Chen Jinlong wang Guobing Yu Deyun Wen Dan Xiao Yong Guo Lei Ren Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique International Journal of Advanced Nuclear Reactor Design and Technology Lead-cooled fast reactor 210Po 209Bi(n,γ)210gBi Spontaneous electrodeposition |
| title | Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique |
| title_full | Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique |
| title_fullStr | Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique |
| title_full_unstemmed | Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique |
| title_short | Experimental progress of 209Bi(n,G)210gBi cross-section measurement based on polonium self-deposition technique |
| title_sort | experimental progress of 209bi n g 210gbi cross section measurement based on polonium self deposition technique |
| topic | Lead-cooled fast reactor 210Po 209Bi(n,γ)210gBi Spontaneous electrodeposition |
| url | http://www.sciencedirect.com/science/article/pii/S2468605025000614 |
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