V. N. Kolokoltsev, S. A. Maslyaev, V. N. Pimenov, A. S. Demin, E. V. Morozov, N. A. Epifanov, I. V. Borovitskaya, E. V. Demina, I. P. Sasinovskaya, A. I. Gaidar
{"title":"等离子体聚焦装置中离子和等离子体脉冲流辐照钒时的表面损伤和粒子抛射","authors":"V. N. Kolokoltsev, S. A. Maslyaev, V. N. Pimenov, A. S. Demin, E. V. Morozov, N. A. Epifanov, I. V. Borovitskaya, E. V. Demina, I. P. Sasinovskaya, A. I. Gaidar","doi":"10.1134/S2075113325700418","DOIUrl":null,"url":null,"abstract":"<p>The damageability of the vanadium surface and ejection of microdroplets from it into the vacuum chamber of the Plasma Focus Vikhr setup was studied under the influence of pulsed ion and plasma flows (working gas was deuterium or helium) with a radiation power density of ~10<sup>6</sup>–10<sup>8</sup> W/cm<sup>2</sup>. It was shown that, as a result of pulsed heating, a liquid film—a thin layer of vanadium melt—is formed on the surface of the sample. Under the action of plasma flow moving parallel to the vanadium sample surface at a high speed, Kelvin–Helmholtz instability occurs, which leads to the formation of waves on the molten layer surface. Impact of plasma flow and powerful acoustic pulses arising from pulsed irradiation of the sample leads to the disruption of liquid vanadium microdroplets and their transfer to the surface of the copper screen-collector. The possible influence of such processes on the operation of controlled thermonuclear fusion facilities is noted.</p>","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"16 3","pages":"589 - 595"},"PeriodicalIF":0.3000,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Surface Damage and Particle Ejection during Irradiation of Vanadium with Pulsed Flows of Ions and Plasma in the Plasma Focus Device\",\"authors\":\"V. N. Kolokoltsev, S. A. Maslyaev, V. N. Pimenov, A. S. Demin, E. V. Morozov, N. A. Epifanov, I. V. Borovitskaya, E. V. Demina, I. P. Sasinovskaya, A. I. Gaidar\",\"doi\":\"10.1134/S2075113325700418\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The damageability of the vanadium surface and ejection of microdroplets from it into the vacuum chamber of the Plasma Focus Vikhr setup was studied under the influence of pulsed ion and plasma flows (working gas was deuterium or helium) with a radiation power density of ~10<sup>6</sup>–10<sup>8</sup> W/cm<sup>2</sup>. It was shown that, as a result of pulsed heating, a liquid film—a thin layer of vanadium melt—is formed on the surface of the sample. Under the action of plasma flow moving parallel to the vanadium sample surface at a high speed, Kelvin–Helmholtz instability occurs, which leads to the formation of waves on the molten layer surface. Impact of plasma flow and powerful acoustic pulses arising from pulsed irradiation of the sample leads to the disruption of liquid vanadium microdroplets and their transfer to the surface of the copper screen-collector. The possible influence of such processes on the operation of controlled thermonuclear fusion facilities is noted.</p>\",\"PeriodicalId\":586,\"journal\":{\"name\":\"Inorganic Materials: Applied Research\",\"volume\":\"16 3\",\"pages\":\"589 - 595\"},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2025-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Inorganic Materials: Applied Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S2075113325700418\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials: Applied Research","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2075113325700418","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Surface Damage and Particle Ejection during Irradiation of Vanadium with Pulsed Flows of Ions and Plasma in the Plasma Focus Device
The damageability of the vanadium surface and ejection of microdroplets from it into the vacuum chamber of the Plasma Focus Vikhr setup was studied under the influence of pulsed ion and plasma flows (working gas was deuterium or helium) with a radiation power density of ~106–108 W/cm2. It was shown that, as a result of pulsed heating, a liquid film—a thin layer of vanadium melt—is formed on the surface of the sample. Under the action of plasma flow moving parallel to the vanadium sample surface at a high speed, Kelvin–Helmholtz instability occurs, which leads to the formation of waves on the molten layer surface. Impact of plasma flow and powerful acoustic pulses arising from pulsed irradiation of the sample leads to the disruption of liquid vanadium microdroplets and their transfer to the surface of the copper screen-collector. The possible influence of such processes on the operation of controlled thermonuclear fusion facilities is noted.
期刊介绍：
Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.
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