| Autor: |
Pochelon, Antoine, Mück, Anja, Curchod, Loïc, Camenen, Yann, Coda, Stefano, Duval, Basil, Goodman, Timothy, Klimanov, Igor, Laqua, Heinrich, Martin, Yves, Moret, Jean-Marc, Porte, Laurie, Sushkov, Alexey, Udintsev, Victor, Volpe, Francesco |
| Předmět: |
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| Popis: |
This paper reports on the first demonstration of electron Bernsteinwave heating (EBWH) by double mode conversion from ordinary (O-) to Bernstein (B-) via the extraordinary (X-) mode in an over-dense tokamak plasma, using low field side launch, achieved in the TCV tokamak H-mode, making use of its naturally generated steep density gradient. This technique offers the possibility of overcoming the upper density limit of conventional EC microwave heating. The sensitive dependence of the O-X mode conversion on the microwave launching direction has been verified experimentally. Localized power deposition, consistent with theoretical predictions, has been observed at densities well above the conventional cut-off. Central heating has been achieved, at powers up to two megawatts. This demonstrates the potential of EBW in tokamak H-modes, the intended mode of operation for a reactor such as ITER. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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