Time evolution of transport properties in JT-60U H-mode plasmas with improved core confinement

H Shirai; T Takizuka; Y Koide; Y Kamada; S Ishida; M Mori; O Naito; M Sato; N Isei; T Fukuda; Y Kawano; T Hirayama; M Azumi

doi:10.1088/0741-3335/38/8/054

Plasma Physics and Controlled Fusion

Time evolution of transport properties in JT-60U H-mode plasmas with improved core confinement

H Shirai¹, T Takizuka¹, Y Koide¹, Y Kamada¹, S Ishida¹, M Mori¹, O Naito¹, M Sato¹, N Isei¹, T Fukuda¹, Y Kawano¹, T Hirayama¹ and M Azumi¹

Published under licence by IOP Publishing Ltd
Plasma Physics and Controlled Fusion, Volume 38, Number 8 Citation H Shirai et al 1996 Plasma Phys. Control. Fusion 38 1455 DOI 10.1088/0741-3335/38/8/054

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¹ Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, 311-01 Japan

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Abstract

The time evolution of confinement and transport properties of ICC H-mode plasmas in JT-60U has been studied. We found the change of confinement character on a timescale much smaller than the thermal energy confinement time, , at the L - H and H - L transitions. A slow change on a timescale of is also found during the H-mode phase.

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Time evolution of transport properties in JT-60U H-mode plasmas with improved core confinement

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