Advanced control scenario of high-performance steady-state operation for JT-60 superconducting tokamak

Tamai, Hiroshi; Kurita, Genichi; Matsukawa, Makoto; Urata, Kazuhiro*; Sakurai, Shinji; Tsuchiya, Katsuhiko; Morioka, Atsuhiko; Miura, Yushi; Kizu, Kaname; Kamada, Yutaka; et al.

Plasma Science and Technology, 6(3), p.2281 - 2285, 2004/06

https://doi.org/10.1088/1009-0630/6/3/003

High performance steady-state operation for JT-60SC are evaluated by the TOPICS analysis. 5 and bootstrap current fraction 86% is kept steady at I=1.5 MA, B=2 T by neutral beam power of 11 MW. The ERATO-J analysis shows that the external-kink mode with multiple toroidal mode numbers of n=1 and n=2 is stable at 5.5 at the average ratio of conducting wall radius to plasma minor radius of about 1.2 with the wall stabilisation effect. Resistive wall modes, induced by a close location of the wall to plasma, is expected to be suppressed by the active feedback stabilisation with a set of non-axisymmetric field coils behind the stabilising plates. Further optimisation for the high- accessibility by the plasma shaping is performed with the TOSCA analysis. The plasma shaping factor defined as S=(I/aB)q and strongly correlated to the plasma elongation and triangularity, is scanned from 4 to 6, which extends the availability of current and pressure profile control for the high performance plasma operation.

Improved confinement with plasma profile and shape controls in JT-60U

Neyatani, Yuzuru; JT-60 Team

Plasma Physics and Controlled Fusion, 38(12A), p.181 - 191, 1996/00

https://doi.org/10.1088/0741-3335/38/12A/014

no abstracts in English

Neutral beam current drive for INTOR; The potential in steady state and quasi steady state operations

; Yamamoto, Shin; Sugihara, Masayoshi; Fujisawa, Noboru

JAERI-M 87-209, 45 Pages, 1988/01

JAERI-M-87-209.pdf:0.92MB

no abstracts in English