Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator
High yield nuclear fusion operating in tokamak and stellarator need to heat plasma up to the required temperatures. As the confined plasma is overdensed, the electron cyclotron resonance heating (ECRH) is inefficient due to cut-off layer. A double mode conversion O-SX and finally electron Bernstein...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-01-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379717306605 |
| _version_ | 1819150314330128384 |
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| author | S. Adlparvar S. Miraboutalebi S.M. Sadat Kiai L. Rajaee |
| author_facet | S. Adlparvar S. Miraboutalebi S.M. Sadat Kiai L. Rajaee |
| author_sort | S. Adlparvar |
| collection | DOAJ |
| description | High yield nuclear fusion operating in tokamak and stellarator need to heat plasma up to the required temperatures. As the confined plasma is overdensed, the electron cyclotron resonance heating (ECRH) is inefficient due to cut-off layer. A double mode conversion O-SX and finally electron Bernstein waves (EBW) O-SXB, offer an attractive possibility for plasma heating. In this article, a two-step mode conversion process, OXB has been used to examine the influence of critical parameters such as fluctuation amplitude Δnn, ECH frequency (f), poloidal correlation length (λy), magnetic field (B), on the modified transmission function and ultimately increase plasma power for the Wendelstein 7-X(W7-X) stellarator, is studied. Keywords: Overdense plasma, Wendelstein 7-X stellarator, Electron cyclotron resonance heating, O-SX mode conversion, Modified transmission coefficient |
| first_indexed | 2024-12-22T14:15:32Z |
| format | Article |
| id | doaj.art-a4e7177901934048ba745afc017211e9 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-22T14:15:32Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-a4e7177901934048ba745afc017211e92022-12-21T18:23:07ZengElsevierResults in Physics2211-37972017-01-01719651970Overdense plasma heating in Wendelstein 7-X(W7-X) stellaratorS. Adlparvar0S. Miraboutalebi1S.M. Sadat Kiai2L. Rajaee3Tehran North Azad University, Department of Physics, Harrvy Square, Bostan 10, Tehran, IranTehran North Azad University, Department of Physics, Harrvy Square, Bostan 10, Tehran, IranNuclear Science and Technology Research Institute (NSTR), Plasma and Nuclear Fusion Research School, A.E.O.I., 14155-1339 Tehran, Iran; Corresponding author.Faculty of Science, Department of Physics, University of Qom, Qadir Blvd., Qom, IranHigh yield nuclear fusion operating in tokamak and stellarator need to heat plasma up to the required temperatures. As the confined plasma is overdensed, the electron cyclotron resonance heating (ECRH) is inefficient due to cut-off layer. A double mode conversion O-SX and finally electron Bernstein waves (EBW) O-SXB, offer an attractive possibility for plasma heating. In this article, a two-step mode conversion process, OXB has been used to examine the influence of critical parameters such as fluctuation amplitude Δnn, ECH frequency (f), poloidal correlation length (λy), magnetic field (B), on the modified transmission function and ultimately increase plasma power for the Wendelstein 7-X(W7-X) stellarator, is studied. Keywords: Overdense plasma, Wendelstein 7-X stellarator, Electron cyclotron resonance heating, O-SX mode conversion, Modified transmission coefficienthttp://www.sciencedirect.com/science/article/pii/S2211379717306605 |
| spellingShingle | S. Adlparvar S. Miraboutalebi S.M. Sadat Kiai L. Rajaee Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator Results in Physics |
| title | Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator |
| title_full | Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator |
| title_fullStr | Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator |
| title_full_unstemmed | Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator |
| title_short | Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator |
| title_sort | overdense plasma heating in wendelstein 7 x w7 x stellarator |
| url | http://www.sciencedirect.com/science/article/pii/S2211379717306605 |
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