Hannover 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
P: Fachverband Plasmaphysik
P 5: Poster Session 1
P 5.5: Poster
Montag, 9. März 2020, 16:30–18:30, Empore Lichthof
Disentanglement of density and rotation dependences of the field penetration threshold on the J-TEXT tokamak — •Zhuo Huang1,2, Yunfeng Liang1,2,3, Qiming Hu4, Nengchao Wang1, Da Li1, Xiaoyi Zhang1, Bo Rao1, Zhipeng Chen1, Song Zhou1, Qi Zhang1, Chengshuo Shen1, Ying He1, and Yonghua Ding1 — 1International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, Huazhong University of Science and Technology, Wuhan, 430074, People*s Republic of China — 2Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung * Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany — 3Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People*s Republic of China — 4Princeton Plasma Physics Laboratory, Princeton University, P.O. Box 451, New Jersey 08543, USA
Penetration of perturbed fields into the magnetized plasma is a fundamental issue in fusion plasmas. The field penetration threshold of magnetic perturbations has been observed to vary non-monotonically with an increase of density in ohmic plasmas on the J-TEXT tokamak. This observation appears contradicting the previous empirical density scaling law. Disentanglement of plasma density and rotation dependences of the field penetration threshold has been carried out. It shows that the field penetration threshold depends only weakly on the density but linearly on the plasma rotation. This result is important for the prediction of error field tolerance in fusion devices.