Feasibility study on tritium recoil barrier for neutron reflectors of research and test reactors
•Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials.•20∼40 μm thickness is required depending on the material to reduce by 3 orders.•Impact on the effective multiplication factor is about 0.2 % at most.•Activities, fabrication and usage experiences, suggests the sele...
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| Veröffentlicht in: | Fusion engineering and design 2021-03, Vol.164, p.112181, Article 112181 |
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| container_title | Fusion engineering and design |
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| creator | Kenzhina, Inesh Ishitsuka, Etsuo Ho, Hai Quan Sakamoto, Naoki Okumura, Keisuke Takemoto, Noriyuki Chikhray, Yevgeni |
| description | •Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials.•20∼40 μm thickness is required depending on the material to reduce by 3 orders.•Impact on the effective multiplication factor is about 0.2 % at most.•Activities, fabrication and usage experiences, suggests the selection of Al as the first candidate.
Tritium release into the primary coolant of the JMTR and the JRR-3 M had been studied, and it is found that tritium recoil release from the chain reaction of beryllium neutron reflectors is dominant. To prevent the tritium recoil release, Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials in this feasibility study. It is clear that 20∼40 μm thickness is required depending on the material to reduce by 3 orders, and that an impact on the effective multiplication factor is about 0.2 % at most. Total evaluation including the activities, fabrication and usage experiences, suggests the selection of Al as the first candidate may have the least development risk as the tritium recoil barrier. |
| doi_str_mv | 10.1016/j.fusengdes.2020.112181 |
| format | Article |
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Tritium release into the primary coolant of the JMTR and the JRR-3 M had been studied, and it is found that tritium recoil release from the chain reaction of beryllium neutron reflectors is dominant. To prevent the tritium recoil release, Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials in this feasibility study. It is clear that 20∼40 μm thickness is required depending on the material to reduce by 3 orders, and that an impact on the effective multiplication factor is about 0.2 % at most. Total evaluation including the activities, fabrication and usage experiences, suggests the selection of Al as the first candidate may have the least development risk as the tritium recoil barrier.</description><identifier>ISSN: 0920-3796</identifier><identifier>EISSN: 1873-7196</identifier><identifier>DOI: 10.1016/j.fusengdes.2020.112181</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Aluminum ; Beryllium ; Feasibility studies ; MCNP6 ; Multiplication ; Neutron reflectors ; Nickel ; ORIGEN2 ; PHITS ; Recoil ; Reflectors ; Research and test reactors ; Tritium ; Tritium recoil barrier ; Zirconium</subject><ispartof>Fusion engineering and design, 2021-03, Vol.164, p.112181, Article 112181</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier Science Ltd. Mar 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c204t-56afe80535ccf81b5f92fae2da25f5b62e8ddfa2c52729805364c1f7af8a251e3</cites><orcidid>0000-0001-5927-0652</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.fusengdes.2020.112181$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27928,27929,45999</link.rule.ids></links><search><creatorcontrib>Kenzhina, Inesh</creatorcontrib><creatorcontrib>Ishitsuka, Etsuo</creatorcontrib><creatorcontrib>Ho, Hai Quan</creatorcontrib><creatorcontrib>Sakamoto, Naoki</creatorcontrib><creatorcontrib>Okumura, Keisuke</creatorcontrib><creatorcontrib>Takemoto, Noriyuki</creatorcontrib><creatorcontrib>Chikhray, Yevgeni</creatorcontrib><title>Feasibility study on tritium recoil barrier for neutron reflectors of research and test reactors</title><title>Fusion engineering and design</title><description>•Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials.•20∼40 μm thickness is required depending on the material to reduce by 3 orders.•Impact on the effective multiplication factor is about 0.2 % at most.•Activities, fabrication and usage experiences, suggests the selection of Al as the first candidate.
Tritium release into the primary coolant of the JMTR and the JRR-3 M had been studied, and it is found that tritium recoil release from the chain reaction of beryllium neutron reflectors is dominant. To prevent the tritium recoil release, Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials in this feasibility study. It is clear that 20∼40 μm thickness is required depending on the material to reduce by 3 orders, and that an impact on the effective multiplication factor is about 0.2 % at most. Total evaluation including the activities, fabrication and usage experiences, suggests the selection of Al as the first candidate may have the least development risk as the tritium recoil barrier.</description><subject>Aluminum</subject><subject>Beryllium</subject><subject>Feasibility studies</subject><subject>MCNP6</subject><subject>Multiplication</subject><subject>Neutron reflectors</subject><subject>Nickel</subject><subject>ORIGEN2</subject><subject>PHITS</subject><subject>Recoil</subject><subject>Reflectors</subject><subject>Research and test reactors</subject><subject>Tritium</subject><subject>Tritium recoil barrier</subject><subject>Zirconium</subject><issn>0920-3796</issn><issn>1873-7196</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkFFLwzAQgIMoOKe_wYDPnUm6pu3jGE4FwRd9jmly0ZSumUkq7N97c-KrEAi5--4u9xFyzdmCMy5v-4WbEozvFtJCMIFRLnjDT8iMN3VZ1LyVp2TGWsGKsm7lOblIqWeM13hm5G0DOvnODz7vacqT3dMw0hx99tOWRjDBD7TTMXqI1IVIR5hyRCSCG8DkEBMNDl8JdDQfVI-WZkgZI_one0nOnB4SXP3ec_K6uXtZPxRPz_eP69VTYQRb5qKS2kHDqrIyxjW8q1wrnAZhtahc1UkBjbVOC1OJWrQHUC4Nd7V2DRIcyjm5OfbdxfA54Q9UH6Y44kiFeSbZspQlUvWRMjGkhDuoXfRbHfeKM3XQqXr1p1MddKqjTqxcHSsBl_hCGyoZD6MB69FSVjb4f3t8A9lChGA</recordid><startdate>202103</startdate><enddate>202103</enddate><creator>Kenzhina, Inesh</creator><creator>Ishitsuka, Etsuo</creator><creator>Ho, Hai Quan</creator><creator>Sakamoto, Naoki</creator><creator>Okumura, Keisuke</creator><creator>Takemoto, Noriyuki</creator><creator>Chikhray, Yevgeni</creator><general>Elsevier B.V</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-5927-0652</orcidid></search><sort><creationdate>202103</creationdate><title>Feasibility study on tritium recoil barrier for neutron reflectors of research and test reactors</title><author>Kenzhina, Inesh ; Ishitsuka, Etsuo ; Ho, Hai Quan ; Sakamoto, Naoki ; Okumura, Keisuke ; Takemoto, Noriyuki ; Chikhray, Yevgeni</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c204t-56afe80535ccf81b5f92fae2da25f5b62e8ddfa2c52729805364c1f7af8a251e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aluminum</topic><topic>Beryllium</topic><topic>Feasibility studies</topic><topic>MCNP6</topic><topic>Multiplication</topic><topic>Neutron reflectors</topic><topic>Nickel</topic><topic>ORIGEN2</topic><topic>PHITS</topic><topic>Recoil</topic><topic>Reflectors</topic><topic>Research and test reactors</topic><topic>Tritium</topic><topic>Tritium recoil barrier</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kenzhina, Inesh</creatorcontrib><creatorcontrib>Ishitsuka, Etsuo</creatorcontrib><creatorcontrib>Ho, Hai Quan</creatorcontrib><creatorcontrib>Sakamoto, Naoki</creatorcontrib><creatorcontrib>Okumura, Keisuke</creatorcontrib><creatorcontrib>Takemoto, Noriyuki</creatorcontrib><creatorcontrib>Chikhray, Yevgeni</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Fusion engineering and design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kenzhina, Inesh</au><au>Ishitsuka, Etsuo</au><au>Ho, Hai Quan</au><au>Sakamoto, Naoki</au><au>Okumura, Keisuke</au><au>Takemoto, Noriyuki</au><au>Chikhray, Yevgeni</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Feasibility study on tritium recoil barrier for neutron reflectors of research and test reactors</atitle><jtitle>Fusion engineering and design</jtitle><date>2021-03</date><risdate>2021</risdate><volume>164</volume><spage>112181</spage><pages>112181-</pages><artnum>112181</artnum><issn>0920-3796</issn><eissn>1873-7196</eissn><abstract>•Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials.•20∼40 μm thickness is required depending on the material to reduce by 3 orders.•Impact on the effective multiplication factor is about 0.2 % at most.•Activities, fabrication and usage experiences, suggests the selection of Al as the first candidate.
Tritium release into the primary coolant of the JMTR and the JRR-3 M had been studied, and it is found that tritium recoil release from the chain reaction of beryllium neutron reflectors is dominant. To prevent the tritium recoil release, Al, Ti, V, Ni and Zr are selected as the candidate tritium recoil barrier materials in this feasibility study. It is clear that 20∼40 μm thickness is required depending on the material to reduce by 3 orders, and that an impact on the effective multiplication factor is about 0.2 % at most. Total evaluation including the activities, fabrication and usage experiences, suggests the selection of Al as the first candidate may have the least development risk as the tritium recoil barrier.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.fusengdes.2020.112181</doi><orcidid>https://orcid.org/0000-0001-5927-0652</orcidid></addata></record> |
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| subjects | Aluminum Beryllium Feasibility studies MCNP6 Multiplication Neutron reflectors Nickel ORIGEN2 PHITS Recoil Reflectors Research and test reactors Tritium Tritium recoil barrier Zirconium |
| title | Feasibility study on tritium recoil barrier for neutron reflectors of research and test reactors |
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