2002•プラズマ・核融合学会誌Open access
Validation of Neutral Point on JT-60U, Alcator C-Mod and ASDEX-Upgrade Tokamaks.
Y. Nakamura, R. Yoshino, Robert GRANETS, Gabriella Pautasso, Otto Gruber, S.C. Jardin
Open full text 0 citations
Abstract
Validation studies of a neutrally balanced vertical plasma position, so-called ”neutral point”, have been carried out by computational simulations and experiments under trilateral Japan-US-EU collaborations. It was clarified that the neutral point, where VDEs (Vertical Displacement Events) are hardly occurred, does exit in the Alcator C-Mod and ASDEX-Upgrade tokamaks as well as the JT-60U, consistent with the simulations. Meanwhile, precise details of the VDE behavior exhibit their own characters according to the individual ofthe tokamaks such as an up-down asymmetry of plasma shape. Sensitivity of the neutral point to the plasma shape and current profile was also addressed in detail.
Open-access reader