| Автор | V Mertens |
| Автор | W Junker |
| Автор | M Laux |
| Автор | M Schittenhelm |
| Автор | K Buchl |
| Автор | F Mast |
| Автор | A Carlsont |
| Автор | A Field |
| Автор | C Fuchs |
| Автор | O Gehre |
| Автор | O Gruber |
| Автор | A Hermann |
| Автор | G Haas |
| Автор | A Kallenbach |
| Автор | M Kaufmann |
| Автор | W Koppendorfer |
| Автор | K Lackner |
| Автор | G Lieder |
| Автор | S Pitcher |
| Автор | J Neuhauser |
| Автор | F Ryter |
| Автор | H Salzmann |
| Автор | W Sandmann |
| Автор | K -H Steuer |
| Автор | M Weinlich |
| Автор | U Wenzel |
| Автор | H Zohm |
| Автор | Asdex Upgrade Team |
| Дата выпуска | 1994-08-01 |
| dc.description | In the ASDEX Upgrade, X-point marfe formation and its behaviour up to the density limit is investigated in gas-fuelled ohmically-heated single-null discharges over a wide range of parameters: I<sub>p</sub>=0.6-1.2 MA, B<sub>TF</sub>=1.35-2.4 T, a plasma elongation of 1.6 and Z<sub>eff</sub><2. The standard-ion Del B drift is directed towards the X-point. At medium electron densities inevitably a marfe develops in the vicinity of the active X-point. The marfe formation is consistent with a model of thermal instabilities in the radiating edge plasma. Moreover, stable steady-state operation is demonstrated with marfes which can extend significantly into the bulk plasma. The density limit is always connected with quick marfe expansion and movement followed by mode-locking leading to a major disruption. The limit scales linearly with I<sub>p</sub> and is in good agreement with the Greenwald density limit scaling. The resulting experimental Hugill limit is n<sub>e</sub>Rq<sub>95</sub>/B<sub>TF</sub>=2.8*10<sup>20</sup>) m<sup>-2</sup> T<sup>-1</sup>. Reversal of the ion Del B drift direction away from the target has a detrimental effect on the density limit. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Experimental investigation of marfes and the density limit in the ASDEX upgrade |
| Тип | paper |
| DOI | 10.1088/0741-3335/36/8/006 |
| Electronic ISSN | 1361-6587 |
| Print ISSN | 0741-3335 |
| Журнал | Plasma Physics and Controlled Fusion |
| Том | 36 |
| Первая страница | 1307 |
| Последняя страница | 1325 |
| Аффилиация | V Mertens; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | W Junker; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | M Laux; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | M Schittenhelm; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | K Buchl; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | F Mast; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | A Carlsont; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | A Field; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | C Fuchs; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | O Gehre; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | O Gruber; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | A Hermann; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | G Haas; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | A Kallenbach; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | M Kaufmann; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | W Koppendorfer; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | K Lackner; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | G Lieder; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | S Pitcher; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | J Neuhauser; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | F Ryter; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | H Salzmann; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | W Sandmann; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | K -H Steuer; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | M Weinlich; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | U Wenzel; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | H Zohm; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Аффилиация | Asdex Upgrade Team; EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen, Germany |
| Выпуск | 8 |
