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Investigation of edge localized mode in the JFT-2M tokamak
| Content Provider | Scilit |
|---|---|
| Author | Nagashima, K. Shoji, T. Miura, Y. |
| Copyright Year | 1996 |
| Description | Journal: Nuclear Fusion The edge localized mode (ELM) was investigated in detail on the JFT-2M tokamak. Spatially, a pivot point was observed inside the separatrix flux surface. Temporally, an ELM event starts from the precursor oscillation, of which the growth rate was about 40 mu s. Another high frequency oscillation with about 300 kHz was found during the magnetic fluctuation burst. Just after the burst, a poloidal electric current (ELM current) was induced in the scrape-off layer. During the ELM, the particle flux to the divertor plates was transiently enhanced by a factor of about 4. The profile of the induced flux was 2-3 times broader than that in the ELM-free period. The total particle flux induced by one ELM was evaluated to be about 5% of the total plasma particles. The ELM current is characterized by its direction and its large fluctuation level. Furthermore, it was found that a large opposite current exists near the strike points on both divertor plates |
| Related Links | http://iopscience.iop.org/article/10.1088/0029-5515/36/3/I06/pdf |
| Ending Page | 345 |
| Page Count | 11 |
| Starting Page | 335 |
| ISSN | 00295515 |
| e-ISSN | 17414326 |
| DOI | 10.1088/0029-5515/36/3/i06 |
| Journal | Nuclear Fusion |
| Issue Number | 3 |
| Volume Number | 36 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1996-03-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nuclear Fusion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Condensed Matter Physics |
