Abstract
Supershot to limiter H-mode transitions have been studied on TFTR. In several cases an edge poloidal rotation was observed prior to the initial D alpha drop at the transition. This spin-up is consistent with formation of a radial electric field, -Er. The Del pI contribution to Er is approximately 30 kV/m and the density fluctuation level is reduced by a factor of 1 to 1.5 over a 5 cm region at the plasma edge across the transition.
Original language | English |
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Article number | 020 |
Pages (from-to) | A153-A158 |
Journal | Plasma Physics and Controlled Fusion |
Volume | 36 |
Issue number | 7 A |
DOIs | |
State | Published - 1994 |