В. В. Дьяченко, А. Б. Алтухов, А. Д. Гурченко, Е. З. Гусаков, Л. А. Есипов, А. Н. Коновалов, С. И. Лашкул, А. Ю. Попов
{"title":"tokamak f2的中间频率范围波动","authors":"В. В. Дьяченко, А. Б. Алтухов, А. Д. Гурченко, Е. З. Гусаков, Л. А. Есипов, А. Н. Коновалов, С. И. Лашкул, А. Ю. Попов","doi":"10.21883/jtf.2023.05.55457.291-22","DOIUrl":null,"url":null,"abstract":"The paper presents observations of plasma intermediate frequency range wave emission ((200-1000) MHz) performed in ohmic discharge of the FT-2 tokamak. The dependencies of the RF signal amplitude and spectrum on the plasma parameters and on the location of the probes are presented. Two possible explanations for this effect is proposed. One of them is related to the distortion of the electron distribution function due to the strong ripple of the magnetic field in the FT-2 tokamak. Second one is related to the existence of a beam of run-away electrons, the buildup of a fan instability responsible for the generation of synchrotron radiation in the range (10-80) GHz, and a complex chain of nonlinear decay instabilities leading to such a strong decrease in the frequency of the observed oscillations.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Колебания в промежуточном диапазоне частот в омическом разряде токамака ФТ-2\",\"authors\":\"В. В. Дьяченко, А. Б. Алтухов, А. Д. Гурченко, Е. З. Гусаков, Л. А. Есипов, А. Н. Коновалов, С. И. Лашкул, А. Ю. Попов\",\"doi\":\"10.21883/jtf.2023.05.55457.291-22\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The paper presents observations of plasma intermediate frequency range wave emission ((200-1000) MHz) performed in ohmic discharge of the FT-2 tokamak. The dependencies of the RF signal amplitude and spectrum on the plasma parameters and on the location of the probes are presented. Two possible explanations for this effect is proposed. One of them is related to the distortion of the electron distribution function due to the strong ripple of the magnetic field in the FT-2 tokamak. Second one is related to the existence of a beam of run-away electrons, the buildup of a fan instability responsible for the generation of synchrotron radiation in the range (10-80) GHz, and a complex chain of nonlinear decay instabilities leading to such a strong decrease in the frequency of the observed oscillations.\",\"PeriodicalId\":24036,\"journal\":{\"name\":\"Журнал технической физики\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Журнал технической физики\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.21883/jtf.2023.05.55457.291-22\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Журнал технической физики","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21883/jtf.2023.05.55457.291-22","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Колебания в промежуточном диапазоне частот в омическом разряде токамака ФТ-2
The paper presents observations of plasma intermediate frequency range wave emission ((200-1000) MHz) performed in ohmic discharge of the FT-2 tokamak. The dependencies of the RF signal amplitude and spectrum on the plasma parameters and on the location of the probes are presented. Two possible explanations for this effect is proposed. One of them is related to the distortion of the electron distribution function due to the strong ripple of the magnetic field in the FT-2 tokamak. Second one is related to the existence of a beam of run-away electrons, the buildup of a fan instability responsible for the generation of synchrotron radiation in the range (10-80) GHz, and a complex chain of nonlinear decay instabilities leading to such a strong decrease in the frequency of the observed oscillations.
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