| Autor: |
Boudewijn Philip van Milligen, Teresa Estrada, Benjamin Carreras, Luis García, the TJ-II Team |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Plasma, Vol 7, Iss 2, Pp 446-464 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2571-6182 |
| DOI: |
10.3390/plasma7020024 |
| Popis: |
We study the effect of the rotational transform profile on the L–H confinement transitions in the neutral beam-heated plasmas in the TJ-II stellarator. The rotational transform profile in the vacuum is determined by the external coil currents but is modified by the plasma current, Ip. We find that L–H confinement transitions systematically occur when the configuration and plasma current are such that a low-order rational is placed in the plasma edge region, with a distribution centered around ρ=0.8±0.05. It is suggested that magnetohydrodynamic turbulence plays an important role in triggering the L–H transitions at TJ-II. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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