| Автор | M Saigusa |
| Автор | H Kimura |
| Автор | S Moriyama |
| Автор | Y Neyatani |
| Автор | T Fujii |
| Автор | Y Koide |
| Автор | T Kondoh |
| Автор | M Sato |
| Автор | M Nemoto |
| Автор | Y Kamada |
| Дата выпуска | 1995-03-01 |
| dc.description | Toroidicity-induced Alfven eigen (TAE) modes are observed during minority-ion cyclotron resonance heating (ICRH) in the JT-60U. The toroidal mode numbers of TAE modes are identified as 7, 8, 9, 10 and 11 from the Doppler shift in the TAE modes with scanning toroidal rotation at a plasma current of 3 MA. The toroidal mode number of TAE modes tends to increase during a giant sawtooth by ICRH with a decreasing safety factor for the central region. The TAE mode number increases with plasma current, so that nine TAE modes are observed sequentially during a giant sawtooth at a plasma current of 4 MA, where the maximum toroidal mode number is estimated to be at least 13. There are no Alfven continuum gaps for TAE modes in the safety-factor ranges of i-1/2n<q<i+1/2n, (i=1, 2, 3, ...), except for the gaps in ellipticity-induced Alfven eigen (EAE) modes, where n is the toroidal mode number of TAE modes. Therefore, control of the q profile might provide a means of avoiding TAE modes, as long as the pressure gradient of the high-energy ions is localized. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Investigation of high-n TAE modes excited by minority-ion cyclotron heating in JT-60U |
| Тип | paper |
| DOI | 10.1088/0741-3335/37/3/009 |
| Electronic ISSN | 1361-6587 |
| Print ISSN | 0741-3335 |
| Журнал | Plasma Physics and Controlled Fusion |
| Том | 37 |
| Первая страница | 295 |
| Последняя страница | 313 |
| Аффилиация | M Saigusa; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | H Kimura; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | S Moriyama; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | Y Neyatani; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | T Fujii; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | Y Koide; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | T Kondoh; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | M Sato; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | M Nemoto; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Аффилиация | Y Kamada; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan |
| Выпуск | 3 |
