TY - JOUR
T1 - Rapid change of the neutral hydrogen energy distribution at the L/H transition in the JFT-2M tokamak
AU - Miura, Y.
AU - Okano, F.
AU - Suzuki, N.
AU - Mori, M.
AU - Hoshino, K.
AU - Maeda, H.
AU - Takizuka, T.
AU - Itoh, S. I.
AU - Itoh, K.
PY - 1992
Y1 - 1992
N2 - Rapid changes of the main ion energy distribution at transitions from L to H, H to L, and during edge localized modes (ELMs) are studied with the time-of-flight neutral measurement on the JFT-2M tokamak. At the L to H transition, 200400 s prior to the start of the H drop, an increase of the high-energy outflux above an energy of 200 eV is observed. An energy of more than 200 eV for hydrogen corresponds to the collisionless condition *i<1 just inside the separatrix. A change of the energy distribution preceding that of the H signal is also found for ELMs.
AB - Rapid changes of the main ion energy distribution at transitions from L to H, H to L, and during edge localized modes (ELMs) are studied with the time-of-flight neutral measurement on the JFT-2M tokamak. At the L to H transition, 200400 s prior to the start of the H drop, an increase of the high-energy outflux above an energy of 200 eV is observed. An energy of more than 200 eV for hydrogen corresponds to the collisionless condition *i<1 just inside the separatrix. A change of the energy distribution preceding that of the H signal is also found for ELMs.
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U2 - 10.1103/PhysRevLett.69.2216
DO - 10.1103/PhysRevLett.69.2216
M3 - Article
AN - SCOPUS:5544230121
SN - 0031-9007
VL - 69
SP - 2216
EP - 2219
JO - Physical review letters
JF - Physical review letters
IS - 15
ER -