Effects of baking in deuterium atmosphere on tritium removal from tungsten
Tritium-containing polycrystalline tungsten, which was pre-irradiated with helium prior to tritium exposure, was isothermally heated under a vacuum or deuterium gas in order to investigate the effect of the deuterium on tritium removal from the tungsten. It is found that in the case of 3 h of baking...
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| Veröffentlicht in: | Fusion engineering and design 2018-11, Vol.136, p.674-677 |
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| container_title | Fusion engineering and design |
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| creator | Nobuta, Yuji Hatano, Yuji Torikai, Yuji Nakayama, Masato |
| description | Tritium-containing polycrystalline tungsten, which was pre-irradiated with helium prior to tritium exposure, was isothermally heated under a vacuum or deuterium gas in order to investigate the effect of the deuterium on tritium removal from the tungsten. It is found that in the case of 3 h of baking at temperatures varying from 423 K and 573 K, tritium retention after baking in deuterium gas became smaller than that in a vacuum. At the baking temperature of 573 K, tritium removal was hastened in the case of baking in deuterium atmosphere. The results indicate that the baking in deuterium atmosphere is effective to remove tritium from tungsten. The acceleration of diffusion of tritium in bulk and recombination of tritium with deuterium at the surface might be possible mechanisms. |
| doi_str_mv | 10.1016/j.fusengdes.2018.03.054 |
| format | Article |
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It is found that in the case of 3 h of baking at temperatures varying from 423 K and 573 K, tritium retention after baking in deuterium gas became smaller than that in a vacuum. At the baking temperature of 573 K, tritium removal was hastened in the case of baking in deuterium atmosphere. The results indicate that the baking in deuterium atmosphere is effective to remove tritium from tungsten. 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It is found that in the case of 3 h of baking at temperatures varying from 423 K and 573 K, tritium retention after baking in deuterium gas became smaller than that in a vacuum. At the baking temperature of 573 K, tritium removal was hastened in the case of baking in deuterium atmosphere. The results indicate that the baking in deuterium atmosphere is effective to remove tritium from tungsten. The acceleration of diffusion of tritium in bulk and recombination of tritium with deuterium at the surface might be possible mechanisms.</description><subject>Baking</subject><subject>Conductivity</subject><subject>Deuterium</subject><subject>Fusion</subject><subject>Helium</subject><subject>Helium irradiation</subject><subject>Tritium</subject><subject>Tritium removal</subject><subject>Tungsten</subject><issn>0920-3796</issn><issn>1873-7196</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkF9LwzAUxYMoOKefwYDPrUlv1zSPY8x_DHzR55A2NzN1bWaSDvz2dkx8FS5cuJxzLudHyC1nOWe8uu9yO0YctgZjXjBe5wxytijPyIzXAjLBZXVOZkwWLAMhq0tyFWPHGBfTzMjL2lpsU6Te0kZ_umFL3UANjgmDG3uqU-_j_gMDUj_QFFw6XgP2_qB31Abf0zQO25hwuCYXVu8i3vzuOXl_WL-tnrLN6-PzarnJ2pLJlDVQ1gVA08gKRNNwa3hrRS1bU5sCNFqhDYIELKvWFNY0ALYWRluzwNoAwJzcnXL3wX-NGJPq_BiG6aUq-EJK4FUlJ5U4qdrgYwxo1T64XodvxZk6glOd-gOnjuAUAzWBm5zLkxOnEgeHQcXW4dCicWFCpYx3_2b8AFpNfSw</recordid><startdate>201811</startdate><enddate>201811</enddate><creator>Nobuta, Yuji</creator><creator>Hatano, Yuji</creator><creator>Torikai, Yuji</creator><creator>Nakayama, Masato</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></search><sort><creationdate>201811</creationdate><title>Effects of baking in deuterium atmosphere on tritium removal from tungsten</title><author>Nobuta, Yuji ; Hatano, Yuji ; Torikai, Yuji ; Nakayama, Masato</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c409t-b348233bb9637bb1fd1cf789cd8d23aef7ade393e46cd2fdb33f87dafd5e8d333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Baking</topic><topic>Conductivity</topic><topic>Deuterium</topic><topic>Fusion</topic><topic>Helium</topic><topic>Helium irradiation</topic><topic>Tritium</topic><topic>Tritium removal</topic><topic>Tungsten</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nobuta, Yuji</creatorcontrib><creatorcontrib>Hatano, Yuji</creatorcontrib><creatorcontrib>Torikai, Yuji</creatorcontrib><creatorcontrib>Nakayama, Masato</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>Nobuta, Yuji</au><au>Hatano, Yuji</au><au>Torikai, Yuji</au><au>Nakayama, Masato</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of baking in deuterium atmosphere on tritium removal from tungsten</atitle><jtitle>Fusion engineering and design</jtitle><date>2018-11</date><risdate>2018</risdate><volume>136</volume><spage>674</spage><epage>677</epage><pages>674-677</pages><issn>0920-3796</issn><eissn>1873-7196</eissn><abstract>Tritium-containing polycrystalline tungsten, which was pre-irradiated with helium prior to tritium exposure, was isothermally heated under a vacuum or deuterium gas in order to investigate the effect of the deuterium on tritium removal from the tungsten. 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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Baking Conductivity Deuterium Fusion Helium Helium irradiation Tritium Tritium removal Tungsten |
| title | Effects of baking in deuterium atmosphere on tritium removal from tungsten |
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