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Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt

In this study, the behavior of fission product iodine released from the melting process of a mixture consisting of UF(4) irradiated with neutrons and 2LiF–BeF(2) (FLiBe) salt was studied. The experiment showed that a large amount of iodine was released immediately during melting and captured by Ni m...

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Autores principales: Geng, Junxia, Zhao, Zhongqi, Cheng, Zhiqiang, Li, Wenxin, Dou, Qiang, Fu, Haiying, Hu, Jifeng, Cai, Xiangzhou, Chen, Jingen, Li, Qingnuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034355/
https://www.ncbi.nlm.nih.gov/pubmed/35480418
http://dx.doi.org/10.1039/d1ra03614a
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author Geng, Junxia
Zhao, Zhongqi
Cheng, Zhiqiang
Li, Wenxin
Dou, Qiang
Fu, Haiying
Hu, Jifeng
Cai, Xiangzhou
Chen, Jingen
Li, Qingnuan
author_facet Geng, Junxia
Zhao, Zhongqi
Cheng, Zhiqiang
Li, Wenxin
Dou, Qiang
Fu, Haiying
Hu, Jifeng
Cai, Xiangzhou
Chen, Jingen
Li, Qingnuan
author_sort Geng, Junxia
collection PubMed
description In this study, the behavior of fission product iodine released from the melting process of a mixture consisting of UF(4) irradiated with neutrons and 2LiF–BeF(2) (FLiBe) salt was studied. The experiment showed that a large amount of iodine was released immediately during melting and captured by Ni metal foils. The transient release of iodine observed in this experiment is attributed to the redox reaction between the hot atoms of the fission product iodine that cumulated due to long-time irradiation. The effect of the redox status of the molten salt on the transient release of iodine was also investigated. Based on this investigation, it was proposed that the activity ratios of (131)I to salt-seeking fission products in the fuel salt, as an effective diagnostic criterion, may be used for the surveillance of the redox potential of fuel salts in a molten salt reactor.
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spelling pubmed-90343552022-04-26 Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt Geng, Junxia Zhao, Zhongqi Cheng, Zhiqiang Li, Wenxin Dou, Qiang Fu, Haiying Hu, Jifeng Cai, Xiangzhou Chen, Jingen Li, Qingnuan RSC Adv Chemistry In this study, the behavior of fission product iodine released from the melting process of a mixture consisting of UF(4) irradiated with neutrons and 2LiF–BeF(2) (FLiBe) salt was studied. The experiment showed that a large amount of iodine was released immediately during melting and captured by Ni metal foils. The transient release of iodine observed in this experiment is attributed to the redox reaction between the hot atoms of the fission product iodine that cumulated due to long-time irradiation. The effect of the redox status of the molten salt on the transient release of iodine was also investigated. Based on this investigation, it was proposed that the activity ratios of (131)I to salt-seeking fission products in the fuel salt, as an effective diagnostic criterion, may be used for the surveillance of the redox potential of fuel salts in a molten salt reactor. The Royal Society of Chemistry 2021-06-28 /pmc/articles/PMC9034355/ /pubmed/35480418 http://dx.doi.org/10.1039/d1ra03614a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Geng, Junxia
Zhao, Zhongqi
Cheng, Zhiqiang
Li, Wenxin
Dou, Qiang
Fu, Haiying
Hu, Jifeng
Cai, Xiangzhou
Chen, Jingen
Li, Qingnuan
Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt
title Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt
title_full Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt
title_fullStr Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt
title_full_unstemmed Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt
title_short Transient release of radioactive iodine from the fission of UF(4) in 2LiF–BeF(2) salt
title_sort transient release of radioactive iodine from the fission of uf(4) in 2lif–bef(2) salt
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034355/
https://www.ncbi.nlm.nih.gov/pubmed/35480418
http://dx.doi.org/10.1039/d1ra03614a
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