Devilal Kumawat, Kumudni Tahiliani, Suresh I, S K Pathak, Santosh P Pandya, Sameer Kumar, Raju Daniel, R L Tanna, Joydeep Ghosh, Umesh Nagora, Manoj K Gupta, Rohit Kumar, Kumarpalsinh Jadeja, Suman Aich
{"title":"First results of fast visible imaging diagnostic in Aditya-U tokamak.","authors":"Devilal Kumawat, Kumudni Tahiliani, Suresh I, S K Pathak, Santosh P Pandya, Sameer Kumar, Raju Daniel, R L Tanna, Joydeep Ghosh, Umesh Nagora, Manoj K Gupta, Rohit Kumar, Kumarpalsinh Jadeja, Suman Aich","doi":"10.1063/5.0101795","DOIUrl":null,"url":null,"abstract":"<p><p>A Fast Visible Imaging Diagnostic (FVID) system, measuring the visible light emission spectrum (400-1000 nm) from tokamak plasma, has been installed on the Aditya-U tokamak to monitor the two-dimensional dynamics of the poloidal cross section of the plasma. In this work, we present the design and installation of the FVID system on the Aditya-U tokamak. The evolution of plasma and plasma-wall interactions is described. The signature of the runaway electron beam in visible imaging and its correlation with other diagnostics is presented. The estimation of the electron cyclotron resonance layer position during pre-ionization is also discussed in this work.</p>","PeriodicalId":519534,"journal":{"name":"The Review of scientific instruments","volume":" ","pages":"113548"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Review of scientific instruments","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1063/5.0101795","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A Fast Visible Imaging Diagnostic (FVID) system, measuring the visible light emission spectrum (400-1000 nm) from tokamak plasma, has been installed on the Aditya-U tokamak to monitor the two-dimensional dynamics of the poloidal cross section of the plasma. In this work, we present the design and installation of the FVID system on the Aditya-U tokamak. The evolution of plasma and plasma-wall interactions is described. The signature of the runaway electron beam in visible imaging and its correlation with other diagnostics is presented. The estimation of the electron cyclotron resonance layer position during pre-ionization is also discussed in this work.