High radiation and high density experiments in JT-60U

Authors
Kubo, H Sakurai, S Asakura, N Konoshima, S Tamai, H Higashijima, S Sakasai, A Takenaga, H Itami, E Shimizu, E Fujita, T Kamada, Y Koide, Y Shirai, H Sugie, T Nakano, T Oyama, N Urano, H Ishijima, T Hill, KW Ernst, DR Leonard, AW
Citation
H. Kubo et al., High radiation and high density experiments in JT-60U, NUCL FUSION, 41(2), 2001, pp. 227-233
Citations number
24
Categorie Soggetti
Physics
Journal title
NUCLEAR FUSION
ISSN journal
00295515 → ACNP
Volume
41
Issue
2
Year of publication
2001
Pages
227 - 233
Database
ISI
SICI code
0029-5515(200102)41:2<227:HRAHDE>2.0.ZU;2-C
Abstract
In order to obtain improved confinement plasmas with high radiation at high density, Ar gas was injected into ELMy H mode plasmas in JT-60U. A confine ment improvement of HH98(y,2) approximate to 1 was obtained with a high rad iation loss power fraction (similar to 80%) at an electron density of simil ar to0.65n(GW). The HH factor was about 50% higher than that in plasmas wit hout Ar injection.