Highβ and ECRH studies in DIII-D
| Autor: | R Stambaugh, S Allen, G Bramson, N Brooks, K H Burrell, R Callis, T Carlstrom, M Chance, M Chu, A Colleraine, D Content, J DeBoo, J Ferron, H Fukumoto, P Gohil, N Gottardi, R J Groebner, G Haas, W Heidbrink, D Hill, R Hong, N Hosogane, W Howl, C Hsieh, G L Jackson, G Jahns, R James, A Kellman, J Kim, S Konshita, L Lao, E Lazarus, J Lohr, P Lomas, J Luxon, M Mahdavi, M Matsuoka, M Mayberry, C P Moeller, N Ohyabu, T Osborne, D Overskei, T Ozeki, S Perkins, P Petersen, M Perry, T Petrie, J Phillips, G Porter, R Prater, M Rensink, D Schissel, J Scoville, R Seraydarian, M Shimada, T Simonen, R T Snider, B Stallard, R Stav, H St John, R Stockdale, E J Strait, T S Taylor, A Turnbull |
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| Rok vydání: | 1988 |
| Předmět: | |
| Zdroj: | Plasma Physics and Controlled Fusion. 30:1585-1596 |
| ISSN: | 1361-6587 0741-3335 |
| DOI: | 10.1088/0741-3335/30/11/018 |
| Popis: | The DIII-D high and low beta stability results have established the basic feasibility of the divertor and H-mode configurations up to elongation 2.0 for next generation tokamaks. The 6.8% beta T achieved has already exceeded projected operating requirements of next generation devices. beta T > 6% has been sustained for 800 ms. Stability calculations and patterns of MHD mode behavior suggest a central expanding zone of ballooning instabilities leads ultimately to unstable m/n=2/1 modes which cause beta collapse or disruption. The pressure gradient at the plasma edge just reaches the first regime ballooning limit prior to ELMs. ECRH has proven effective for generating H-mode, sawtooth suppression, and ELM suppression. |
| Databáze: | OpenAIRE |
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