Investigation of Tin Removal for Liquid Metal Tokamak Divertor by Low Pressure Argon Arc with Hot Tungsten Cathode System

IF 1.9 4区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Journal of Fusion Energy Pub Date : 2023-08-18 DOI:10.1007/s10894-023-00374-8

Himanshu Mishra, Tomáš Mašek, Zdeněk Turek, Martin Čada, Zdeněk Hubička, Pavel Kudrna, Milan Tichý

{"title":"Investigation of Tin Removal for Liquid Metal Tokamak Divertor by Low Pressure Argon Arc with Hot Tungsten Cathode System","authors":"Himanshu Mishra, Tomáš Mašek, Zdeněk Turek, Martin Čada, Zdeněk Hubička, Pavel Kudrna, Milan Tichý","doi":"10.1007/s10894-023-00374-8","DOIUrl":null,"url":null,"abstract":"<div><p>The influence of a low-pressure argon arc with a hot tungsten cathode on the thin tin film with a negative bias voltage applied during the plasma treatment was investigated to study the tin film removal from the sample surface. Samples were prepared on a stainless-steel substrate using DC magnetron sputtering and hybrid HiPIMS assisted with electron cyclotron wave resonance (ECWR). During treatment an optical emission spectroscopy was employed to detect and characterize the emission line of tin spectrum and the electron density and temperature were measured by Langmuir probe. Morphological study by a scanning electron microscope helped to gain insight to the mechanism of tin removal from the substrate. In addition, elemental compositions of tin layer before and after treatment was measured by an energy dispersive X-ray spectroscopy. We believe that this study contributes to finding a proper treatment for tin removal from plasma facing surfaces of tokamaks using tin in the liquid metal divertor.</p></div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":"42 2","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fusion Energy","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10894-023-00374-8","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The influence of a low-pressure argon arc with a hot tungsten cathode on the thin tin film with a negative bias voltage applied during the plasma treatment was investigated to study the tin film removal from the sample surface. Samples were prepared on a stainless-steel substrate using DC magnetron sputtering and hybrid HiPIMS assisted with electron cyclotron wave resonance (ECWR). During treatment an optical emission spectroscopy was employed to detect and characterize the emission line of tin spectrum and the electron density and temperature were measured by Langmuir probe. Morphological study by a scanning electron microscope helped to gain insight to the mechanism of tin removal from the substrate. In addition, elemental compositions of tin layer before and after treatment was measured by an energy dispersive X-ray spectroscopy. We believe that this study contributes to finding a proper treatment for tin removal from plasma facing surfaces of tokamaks using tin in the liquid metal divertor.

Abstract Image

查看原文本刊更多论文

低压氩弧-热钨阴极系统对液态金属托卡马克分流器除锡的研究

在等离子体处理过程中，研究了带热钨阴极的低压氩弧对锡膜的影响，并对锡膜的去除进行了研究。采用直流磁控溅射和电子回旋波共振(ECWR)辅助的混合HiPIMS技术在不锈钢衬底上制备样品。处理过程中采用发射光谱法对锡谱线进行了检测和表征，并用朗缪尔探针测量了电子密度和温度。扫描电镜形态学研究有助于深入了解基体的除锡机理。此外，用x射线能谱仪测定了处理前后锡层的元素组成。我们认为，本研究有助于找到一种合适的处理方法，在液态金属分流器中使用锡来去除托卡马克等离子体表面的锡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Fusion Energy 工程技术-核科学技术

CiteScore

2.20

自引率

0.00%

发文量

审稿时长

2.3 months

期刊介绍： The Journal of Fusion Energy features original research contributions and review papers examining and the development and enhancing the knowledge base of thermonuclear fusion as a potential power source. It is designed to serve as a journal of record for the publication of original research results in fundamental and applied physics, applied science and technological development. The journal publishes qualified papers based on peer reviews. This journal also provides a forum for discussing broader policies and strategies that have played, and will continue to play, a crucial role in fusion programs. In keeping with this theme, readers will find articles covering an array of important matters concerning strategy and program direction.