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Comparison of Plasma Heating at First and Second Electron Cyclotron Harmonics in the T-10 Tokamakстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 23 сентября 2020 г.
- Авторы: Dnestrovskij Yu N., Danilov A.V., Dnestrovskij A.Yu, Klyuchnikov L.A., Lysenko S.E., Melnikov A.V., Nemets A.R., Nurgaliev M.R., Subbotin G.F., Soloviev N.A., Sushkov A.V., Sychugov D.Yu, Cherkasov S.V.
- Журнал: Plasma Physics Reports
- Том: 46
- Номер: 5
- Год издания: 2020
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 477
- Последняя страница: 489
- DOI: 10.1134/s1063780x20050037
- Аннотация: In the T-10 tokamak, the results of plasma heating at the first and second electron cyclotron (EC) harmonics differ substantially. However, the problem is multi-parametric, so it is impossible to estimate the heating quality by sight. In this work, the analysis of heating at both harmonics is provided with two transport models, which were constructed separately for simulation in each mode. For the heating on the second harmonic, we solve the inverse problem of determining the profile of the absorbed power from the experimentalelectron temperature profile. In this mode, we are able to determine both the deposited power profile and theratio of absorbed to deposited power. It is shown that at low plasma densities, this ratio is small, which, apparently, is a consequence of the low absorption of the heating waves during their single pass though the plasma.During the heating at the second harmonic, the absorbed power profile is much flatter than predicted by raytracing calculations of EC waves. Multi-pass wave absorption with random reflections from the corrugatedchamber wall leads to such absorption profiles. At high plasma densities, the absorbed power is close to theinput power. However, in this case, the results at the second harmonic are worse than the results obtained at the first harmonic due to the flatter absorbed density profile.
- Добавил в систему: Сычугов Дмитрий Юрьевич