Автор |
Anders Möller |
Автор |
Eva Sallander |
Дата выпуска |
1999-10-01 |
dc.description |
Langmuir probe and magnetic pick-up coil measurements are used to study edge turbulence in the Extrap T2 reversed field pinch. Magnetic fluctuations resonant outside the toroidal field reversal surface are observed where previously only fluctuations in the spectra of potential and electron density and temperature have been measured. Results are presented which imply that these fluctuations are coupled to and also correlated to the internally resonant tearing mode fluctuations. Evidence of coupling between low-frequency (<100 kHz) and high-frequency fluctuations is also presented. The normalized floating potential fluctuations are seen to increase with the edge electron temperature. This causes an increase of the potential and density fluctuation driven transport with the temperature which is faster than linear. These results, in combination, are consistent with a picture where internally resonant fluctuations couple to edge fluctuations through radial heat conduction from the stochastic core to the edge. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Electrostatic and magnetic measurements of turbulence and transport in Extrap T2 |
Тип |
paper |
DOI |
10.1088/0741-3335/41/10/301 |
Electronic ISSN |
1361-6587 |
Print ISSN |
0741-3335 |
Журнал |
Plasma Physics and Controlled Fusion |
Том |
41 |
Первая страница |
1211 |
Последняя страница |
1220 |
Аффилиация |
Anders Möller; Division of Fusion Plasma Physics, Alfvén Laboratory, Royal Institute of Technology, Association EURATOM/NFR, SE-100 44 Stockholm, Sweden |
Аффилиация |
Eva Sallander; Division of Fusion Plasma Physics, Alfvén Laboratory, Royal Institute of Technology, Association EURATOM/NFR, SE-100 44 Stockholm, Sweden |
Выпуск |
10 |