用氘化十硼烷在JT-60U中渗硼

IF 0.3 1区艺术学 0 MUSIC

NINETEENTH CENTURY MUSIC Pub Date : 2002-11-07 DOI:10.1109/FUSION.2002.1027719

J. Yagyu, T. Arai, A. Kaminaga, K. Kizu, M. Arai, N. Miya

{"title":"用氘化十硼烷在JT-60U中渗硼","authors":"J. Yagyu, T. Arai, A. Kaminaga, K. Kizu, M. Arai, N. Miya","doi":"10.1109/FUSION.2002.1027719","DOIUrl":null,"url":null,"abstract":"In JT-60U, boronization using hydride-decaborane (B/sub 10/H/sub 14/) vaporization has been conducted for the first wall conditioning. Compared to other discharge cleaning, boronization is claimed to be efficient in reduction of both oxygen impurities and hydrogen recycling in plasma. However, there are a few issues for reducing of hydrogen included in boron film and for stabilizing of DC glow discharge cleaning (GDC) during the boronization. To solve the issues, a new boronization method using deuterated-decaborane (B/sub 10/D/sub 14/) was adopted instead of the conventional B/sub 10/H/sub 14/. As a result, hydrogen content in the boron film decreased clearly, and the discharge conditioning shots for decreasing hydrogen concentration in plasmas after the boronization was reduced to 1/10 in comparison to the conventional process. Furthermore, GDC became stable, with only helium dilution gas, and it was possible to save 30 hours in maximum of the time necessary for boronization. It was found that the boronization using B/sub 10/D/sub 14/ is very efficient and effective method for the first wall conditioning.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Boronization using deuterated-decaborane in JT-60U\",\"authors\":\"J. Yagyu, T. Arai, A. Kaminaga, K. Kizu, M. Arai, N. Miya\",\"doi\":\"10.1109/FUSION.2002.1027719\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In JT-60U, boronization using hydride-decaborane (B/sub 10/H/sub 14/) vaporization has been conducted for the first wall conditioning. Compared to other discharge cleaning, boronization is claimed to be efficient in reduction of both oxygen impurities and hydrogen recycling in plasma. However, there are a few issues for reducing of hydrogen included in boron film and for stabilizing of DC glow discharge cleaning (GDC) during the boronization. To solve the issues, a new boronization method using deuterated-decaborane (B/sub 10/D/sub 14/) was adopted instead of the conventional B/sub 10/H/sub 14/. As a result, hydrogen content in the boron film decreased clearly, and the discharge conditioning shots for decreasing hydrogen concentration in plasmas after the boronization was reduced to 1/10 in comparison to the conventional process. Furthermore, GDC became stable, with only helium dilution gas, and it was possible to save 30 hours in maximum of the time necessary for boronization. It was found that the boronization using B/sub 10/D/sub 14/ is very efficient and effective method for the first wall conditioning.\",\"PeriodicalId\":44192,\"journal\":{\"name\":\"NINETEENTH CENTURY MUSIC\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2002-11-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"NINETEENTH CENTURY MUSIC\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/FUSION.2002.1027719\",\"RegionNum\":1,\"RegionCategory\":\"艺术学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"0\",\"JCRName\":\"MUSIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"NINETEENTH CENTURY MUSIC","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FUSION.2002.1027719","RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"MUSIC","Score":null,"Total":0}

引用次数: 0

摘要

在JT-60U中，采用氢化物-十硼烷(B/sub - 10/H/sub - 14/)汽化进行了第一次壁化。与其他放电清洗相比，硼化处理在减少等离子体中的氧杂质和氢的再循环方面都是有效的。然而，硼膜中含氢的还原和硼化过程中直流辉光放电清洗(GDC)的稳定存在一些问题。为了解决这一问题，采用氘化十硼烷(B/sub - 10/D/sub - 14/)代替传统的B/sub - 10/H/sub - 14/硼化方法。结果表明，硼膜中的氢含量明显下降，硼化后等离子体中降低氢浓度的放电调理次数比常规工艺减少了1/10。此外，GDC变得稳定，仅使用氦稀释气体，并且可以节省最多30小时的硼化所需时间。结果表明，B/sub - 10/D/sub - 14/渗硼是一种高效、有效的渗硼方式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Boronization using deuterated-decaborane in JT-60U

In JT-60U, boronization using hydride-decaborane (B/sub 10/H/sub 14/) vaporization has been conducted for the first wall conditioning. Compared to other discharge cleaning, boronization is claimed to be efficient in reduction of both oxygen impurities and hydrogen recycling in plasma. However, there are a few issues for reducing of hydrogen included in boron film and for stabilizing of DC glow discharge cleaning (GDC) during the boronization. To solve the issues, a new boronization method using deuterated-decaborane (B/sub 10/D/sub 14/) was adopted instead of the conventional B/sub 10/H/sub 14/. As a result, hydrogen content in the boron film decreased clearly, and the discharge conditioning shots for decreasing hydrogen concentration in plasmas after the boronization was reduced to 1/10 in comparison to the conventional process. Furthermore, GDC became stable, with only helium dilution gas, and it was possible to save 30 hours in maximum of the time necessary for boronization. It was found that the boronization using B/sub 10/D/sub 14/ is very efficient and effective method for the first 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

NINETEENTH CENTURY MUSIC MUSIC-

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： 19th-Century Music covers all aspects of Western art music between the mid-eighteenth and mid-twentieth centuries. We welcome--in no particular order--considerations of composers and compositions, styles, performance, historical watersheds, cultural formations, critical methods, musical institutions, ideas, and topics not named on this list. Our aim is to publish contributions to ongoing conversations at the leading edge of musical and multidisciplinary scholarship.