In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 35, No. 6R ( 1996-06-01), p. 3595-
Abstract:
The L-H-L transitions have been analyzed mainly for high-field pulses ( B t ≈4 T) in JT-60U. The simultaneous response of electron temperature T e has been clearly observed during L-H-L transitions over a wide plasma region. This T e evolution is described as the result of the fast jump of electron heat diffusivity, δχ e , over the wide plasma region. Values of δχ e were obtained as 0.5 m 2 /s 〈 | δχ e | 〈 1 m 2 /s, which usually increase with radius. The simultaneous response of ion temperature T i was also observed to be that of similar to the T e response. The jump of ion heat diffusivity, δχ i , is similar to that of δχ e and usually increases with radius, as does δχ e . In a low-field pulse ( B t ≈2.5 T), | δχ i | is as large as 2 m 2 /s. Values of δχ are consistent with the change of the energy confinement time during transitions.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.35.3595
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1996
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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