硼化硼涂层和在 LHD 中使用杂质粉末滴管进行实时硼涂层

Naoko Ashikawa, R. Lunsford, Federico Nespoli, E. Gilson, S. Kado, Jiansheng Hu, Yaowei Yu
{"title":"硼化硼涂层和在 LHD 中使用杂质粉末滴管进行实时硼涂层","authors":"Naoko Ashikawa, R. Lunsford, Federico Nespoli, E. Gilson, S. Kado, Jiansheng Hu, Yaowei Yu","doi":"10.1088/2058-6272/ad495f","DOIUrl":null,"url":null,"abstract":"\n In Large Helical Device (LHD), diborane (B2H6) is used as a standard boron source for boronization, which is assisted by helium glow discharges. In 2019, a new Impurity Powder Dropper (IPD) system has been installed and is under evaluation as a real-time wall conditioning technique. In LHD), which is a large size heliotron device, an additional helium (He) glow discharge cleaning (GDC) after boronization has been operated for a reduction of hydrogen recycling from coated boron layers, and this operational time of 3 h was determined by spectroscopic data during glow discharges. A flat hydrogen profile is obtained on the top surface of coated boron on the specimen exposed to boronization, the result suggests a reduction of hydrogen at the top surface by He-GDC. Trapped oxygen in coated boron was obtained by boronization, and the coated boron, which has boron-oxide, on the first wall by B-IPD was also shown. Considering the difference in coating areas between B2H6 boronization and B-IPD operation, it would be most effective to use the IPD and B2H6 boronization coating together for optimized wall conditioning.","PeriodicalId":506986,"journal":{"name":"Plasma Science and Technology","volume":" 2","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Coated boron layers by boronization and a real-time boron coating using impurity powder dropper in LHD\",\"authors\":\"Naoko Ashikawa, R. Lunsford, Federico Nespoli, E. Gilson, S. Kado, Jiansheng Hu, Yaowei Yu\",\"doi\":\"10.1088/2058-6272/ad495f\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n In Large Helical Device (LHD), diborane (B2H6) is used as a standard boron source for boronization, which is assisted by helium glow discharges. In 2019, a new Impurity Powder Dropper (IPD) system has been installed and is under evaluation as a real-time wall conditioning technique. In LHD), which is a large size heliotron device, an additional helium (He) glow discharge cleaning (GDC) after boronization has been operated for a reduction of hydrogen recycling from coated boron layers, and this operational time of 3 h was determined by spectroscopic data during glow discharges. A flat hydrogen profile is obtained on the top surface of coated boron on the specimen exposed to boronization, the result suggests a reduction of hydrogen at the top surface by He-GDC. Trapped oxygen in coated boron was obtained by boronization, and the coated boron, which has boron-oxide, on the first wall by B-IPD was also shown. Considering the difference in coating areas between B2H6 boronization and B-IPD operation, it would be most effective to use the IPD and B2H6 boronization coating together for optimized wall conditioning.\",\"PeriodicalId\":506986,\"journal\":{\"name\":\"Plasma Science and Technology\",\"volume\":\" 2\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasma Science and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1088/2058-6272/ad495f\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/2058-6272/ad495f","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

在大型螺旋装置(LHD)中,二硼烷(B2H6)被用作硼化的标准硼源,由氦辉光放电辅助。2019 年,安装了一个新的杂质粉末滴管(IPD)系统,作为一种实时壁面调节技术正在接受评估。在大尺寸日辐射器(LHD)中,硼化后的额外氦(He)辉光放电清洗(GDC)已投入运行,以减少涂层硼层的氢回收,3 小时的运行时间是通过辉光放电期间的光谱数据确定的。在暴露于硼化的试样上,镀层硼的顶面获得了平坦的氢曲线,结果表明氦-GDC 减少了顶面的氢。通过硼化在涂层硼中获得了捕获的氧,同时还显示了通过 B-IPD 在第一壁上获得的具有氧化硼的涂层硼。考虑到 B2H6 化硼和 B-IPD 操作在涂层面积上的差异,将 IPD 和 B2H6 化硼涂层结合使用以优化壁调节将最为有效。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coated boron layers by boronization and a real-time boron coating using impurity powder dropper in LHD
In Large Helical Device (LHD), diborane (B2H6) is used as a standard boron source for boronization, which is assisted by helium glow discharges. In 2019, a new Impurity Powder Dropper (IPD) system has been installed and is under evaluation as a real-time wall conditioning technique. In LHD), which is a large size heliotron device, an additional helium (He) glow discharge cleaning (GDC) after boronization has been operated for a reduction of hydrogen recycling from coated boron layers, and this operational time of 3 h was determined by spectroscopic data during glow discharges. A flat hydrogen profile is obtained on the top surface of coated boron on the specimen exposed to boronization, the result suggests a reduction of hydrogen at the top surface by He-GDC. Trapped oxygen in coated boron was obtained by boronization, and the coated boron, which has boron-oxide, on the first wall by B-IPD was also shown. Considering the difference in coating areas between B2H6 boronization and B-IPD operation, it would be most effective to use the IPD and B2H6 boronization coating together for optimized wall conditioning.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信