Advanced data handling for plasma profile control in JT-60

Yonekawa, Izuru; Sueoka, Michiharu; Hosoyama, Hiroki*; Kawamata, Yoichi; Suzuki, Takahiro; Kurihara, Kenichi

Fusion Engineering and Design, 81(15-17), p.1897 - 1903, 2006/07

https://doi.org/10.1016/j.fusengdes.2006.04.050

Recent years, plasma current profile (j-profile) control has been newly proposed to avoid instabilities in the high normalized-beta plasma. In particular, for the real-time profile feedback control, the control period should be roughly less than several tens of ms, including data communication among relating systems. In order to minimize data transfer time,the profile data being a function of time and position is required to decrease its data size for efficient data handling. A profile data,defined as 3-dimension time series data (q,R,Z,t), was reduced by introducing normalized minor radius rho in place of (R,Z). Data handling for profile control will be presented with their technical issues, together with computing hardware engineering.

A Study on current density distribution reproduction by bounded-eigenfunction expantsion for a tokamak plasma

Kurihara, Kenichi

JAERI-Research 97-084, 21 Pages, 1997/11

JAERI-Research-97-084.pdf:1.36MB

no abstracts in English