S. Tkachenko, A. Samokhin, V. Aleksandrov, E. Grabovskii, K. Khishchenko, A. Shishlov, Aleksandr Branitskii, I. Frolov, G. Oleinik
{"title":"On Modelling the Transport Line when Covering the Current-Carrying Surface with Various Materials","authors":"S. Tkachenko, A. Samokhin, V. Aleksandrov, E. Grabovskii, K. Khishchenko, A. Shishlov, Aleksandr Branitskii, I. Frolov, G. Oleinik","doi":"10.1109/EFRE47760.2020.9242133","DOIUrl":null,"url":null,"abstract":"Thick-walled tubes were used as a model of line nodes that are subjected to the greatest dynamic and energy loads. The formation of plasma on the surface of lead-coated and ceramic-coated electrodes was studied using shadow frame and streak photography. The linear current density was of the order of 1–3 MA/cm with a rise time of 100 ns. It is necessary to underline that the experiment was conducted in the absence of a source of powerful x-ray radiation. Numerical calculations were performed to simulate the processes that occur in a thick-walled tube when a current with a high linear density is passed through it. The results of numerical modeling of parameter evolution in such a linear density of 3MA/cm for steel cylindrical conductor with diameter of d = 3mm and a wall thickness of 0.5 mm covered by lead foil is in good agreement with experiment.","PeriodicalId":190249,"journal":{"name":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","volume":"13 4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EFRE47760.2020.9242133","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
Thick-walled tubes were used as a model of line nodes that are subjected to the greatest dynamic and energy loads. The formation of plasma on the surface of lead-coated and ceramic-coated electrodes was studied using shadow frame and streak photography. The linear current density was of the order of 1–3 MA/cm with a rise time of 100 ns. It is necessary to underline that the experiment was conducted in the absence of a source of powerful x-ray radiation. Numerical calculations were performed to simulate the processes that occur in a thick-walled tube when a current with a high linear density is passed through it. The results of numerical modeling of parameter evolution in such a linear density of 3MA/cm for steel cylindrical conductor with diameter of d = 3mm and a wall thickness of 0.5 mm covered by lead foil is in good agreement with experiment.
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