NDLI: The difference in H-mode confinement between co- and co + counter-neutral beam heating in the JFT-2M tokamak

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The difference in H-mode confinement between co- and co + counter-neutral beam heating in the JFT-2M tokamak

Content Provider	Scilit
Author	Miura, Y. Shinohara, K. Suzuki, N. Ida, Katsumi
Copyright Year	1998
Description	Journal: Plasma Physics and Controlled Fusion The improvement in H-mode confinement in the JFT-2M tokamak shows the difference between CO- and counter-neutral beam (CTR-NB) heating. The improvement in the CO is larger than that in the CO + CTR or CTR H-mode. The reason for is considered not to be the effect of the sheared toroidal rotation, , in the core. at the last closed flux surface shows a finite value (about 20-40 and the direction is dependent on the beam injection angle) in a divertor H-mode. The finite toroidal rotation at the edge plays a role in the observed . Since the radial electric field formed by the poloidal rotation is negative, the electric field shear at the edge is increased by the positive electric field of . In contrast, the electric field from is negative, which reduces the electric field shear. Therefore, the difference in the improvement between the CO and CO + CTR H-mode, which comes from the difference in the pedestal height, may be related to the electric field shear at the edge.
Related Links	http://iopscience.iop.org/article/10.1088/0741-3335/40/5/046/pdf
Ending Page	803
Page Count	5
Starting Page	799
ISSN	07413335
e-ISSN	13616587
DOI	10.1088/0741-3335/40/5/046
Journal	Plasma Physics and Controlled Fusion
Issue Number	5
Volume Number	40
Language	English
Publisher	IOP Publishing
Publisher Date	1998-05-01
Access Restriction	Open
Subject Keyword	Journal: Plasma Physics and Controlled Fusion Nuclear Energy and Engineering Electric Field
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Nuclear Energy and Engineering

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