ACHIEVEMENT OF HIGH FUSION PERFORMANCE IN JT-60U REVERSED SHEAR DISCHARGES

Authors
ISHIDA S FUJITA T AKASAKA H AKINO N ANNOU K AOYAGI T ARAI T ARAKAWA K ASAKURA N AZUMI M BUDNY R CHIBA S DACOSTA O EBISAWA N FUJII T FUKUDA T FUNAHASHI A GRISHAM L GUNJI S HAMAMATSU K HASEGAWA Y HATAE T HIGASHIJIMA S HIRATSUKA H HIRAUCHI S HIRAYAMA T HONDA A HONDA M HOSOGANE N ICHIGE H IDE S IKEDA Y ISAKA M ISAYAMA A ISEI N ISHII Y ISOZAKI N ITAMI K ITOH T IWAHASHI T KAMADA Y KAMINAGA A KASHIWABARA T KAWAI M KAWAMATA Y KAWANO Y KAZAMA D KAZAWA M KIKUCHI M KIMURA H KIMURA T KISHIMOTO H KISHIMOTO Y KITAMURA S KIYONO K KODAMA K KOIDE Y KOKUSEN S KONDOH T KONOSHIMA S KOOG J KRAMER GJ KUBO H KURIHARA K KURITA G KURIYAMA M KUSAMA Y MASAKI K MATSUDA T MATSUMOTO T MATUKAWA M MIURA T MIYA N MIYACHI K MIYATA H MIYO Y MOGAKI K MORI M MORIMOTO M MORIOKA S MORIYAMA S NAGAMI M NAGASHIMA A NAGASHIMA K NAGAYA S NAITO O NAKAMURA Y NEMOTO M NEYATANI Y NISHITANI T OGIWARA N OHGA T OHSAWA M OHSHIMA T OIKAWA T OKABE T OKANO J OMORI K OMORI S OMORI Y ONOSE Y OOHARA H OZEKI T SAIDOH M SAIGUSA M SAITO N SAKASAI A SAKATA S SAKURAI S SASAJIMA T SATO M SCOTT SD SEIMIYA M SEIKI H SEKI M SHIMADA M SHIMIZU K SHIMIZU M SHIMONO M SHINOZAKI S SHIRAI H SHITOMI M SUGANUMA K SUGIE T SUNAOSHI H TAKAHASHI M TAKAHASHI S TAKEJI S TAKENAGA H TAKIZUKA T TAMAI H TERAKADO M TERAKADO T TOBITA K TOKUDA S TOTSUKA T TOYOKAWA Y TOYOSHIMA N TSUCHIYA K TSUGITA T TSUKAHARA Y TUDA T URAMOTO Y USHIGUSA K USUI K YAGYU J YAMAGIWA M YAMAMOTO M YAMAMOTO T YAMASHITA O YOKOKURA K YOSHIDA H YOSHIDA M YOSHINO R
Citation
S. Ishida et al., ACHIEVEMENT OF HIGH FUSION PERFORMANCE IN JT-60U REVERSED SHEAR DISCHARGES, Physical review letters, 79(20), 1997, pp. 3917-3921
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
20
Year of publication
1997
Pages
3917 - 3921
Database
ISI
SICI code
0031-9007(1997)79:20<3917:AOHFPI>2.0.ZU;2-F
Abstract
Fusion performance of reversed shear discharges with an L-mode edge ha s been significantly improved in a thermonuclear dominant regime with up to 2.8 MA of plasma current in the JT-60U tokamak. The core plasma energy is efficiently confined due to the existence of persistent inte rnal transport barriers formed for both ions and electrons at a large minor radius of r/a similar to 0.7 near the boundary of the reversed s hear region. In an assumed deuterium-tritium fuel, the peak fusion amp lification factor defined for transient conditions involving the dW/dt term would be in excess of unity.