Abstract
Rapid changes of the main ion energy distribution at transitions from L-to-H, H-to-L and during ELMs are studied with the time of flight neutral measurement on the JFT-2M tokamak. At the L to H transition, 200-400{mu}s prior to the start of H{sub {alpha}} drop, an increase of the high energy outflux above an energy of 200eV is observed. An energy of more than 200eV for hydrogen corresponds to the collisionless condition {nu}*{sub i} < 1 just inside the separatrix. The change of the energy distribution precedes that of the H{sub {alpha}} signal and is also found for ELMs and the H to L transition. (author).
Miura, Y;
Okano, F;
Suzuki, N;
Mori, M;
Hoshino, K;
Maeda, H;
Takizuka, T;
[1]
Itoh, S;
Itoh, K
- Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Citation Formats
Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, S, and Itoh, K.
Rapid change of hydrogen neutral energy distribution at L/H-transition in JFT-2M H-mode.
Japan: N. p.,
1992.
Web.
Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, S, & Itoh, K.
Rapid change of hydrogen neutral energy distribution at L/H-transition in JFT-2M H-mode.
Japan.
Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, S, and Itoh, K.
1992.
"Rapid change of hydrogen neutral energy distribution at L/H-transition in JFT-2M H-mode."
Japan.
@misc{etde_10111270,
title = {Rapid change of hydrogen neutral energy distribution at L/H-transition in JFT-2M H-mode}
author = {Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, S, and Itoh, K}
abstractNote = {Rapid changes of the main ion energy distribution at transitions from L-to-H, H-to-L and during ELMs are studied with the time of flight neutral measurement on the JFT-2M tokamak. At the L to H transition, 200-400{mu}s prior to the start of H{sub {alpha}} drop, an increase of the high energy outflux above an energy of 200eV is observed. An energy of more than 200eV for hydrogen corresponds to the collisionless condition {nu}*{sub i} < 1 just inside the separatrix. The change of the energy distribution precedes that of the H{sub {alpha}} signal and is also found for ELMs and the H to L transition. (author).}
place = {Japan}
year = {1992}
month = {Feb}
}
title = {Rapid change of hydrogen neutral energy distribution at L/H-transition in JFT-2M H-mode}
author = {Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, S, and Itoh, K}
abstractNote = {Rapid changes of the main ion energy distribution at transitions from L-to-H, H-to-L and during ELMs are studied with the time of flight neutral measurement on the JFT-2M tokamak. At the L to H transition, 200-400{mu}s prior to the start of H{sub {alpha}} drop, an increase of the high energy outflux above an energy of 200eV is observed. An energy of more than 200eV for hydrogen corresponds to the collisionless condition {nu}*{sub i} < 1 just inside the separatrix. The change of the energy distribution precedes that of the H{sub {alpha}} signal and is also found for ELMs and the H to L transition. (author).}
place = {Japan}
year = {1992}
month = {Feb}
}