Journal Article

FZJ-2017-01701

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Runaway electron generation during disruptions in the J-TEXT tokamak

Zeng, L. (Corresponding author) ; Chen, Z. Y. ; Dong, Y. B. ; Koslowski, H. R. (Corresponding author)FZJ* ; Liang, Y.FZJ* ; Zhang, Y. P. ; Zhuang, H. D. ; Huang, D. W. ; Gao, X.

2017
IAEA Vienna

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Please use a persistent id in citations: doi:10.1088/1741-4326/aa57d9

Abstract: A systematic study of disruption-generated runaway electrons has been performed in the J-TEXT tokamak. During the intended disruption by the argon injection in J-TEXT, the runaway electron plateau is more easily obtained with a higher loop voltage and shorter onset time of high loop voltage. Magnetic fluctuations are observed at the beginning of the current quench during the disruptions. The generated runaway electron (RE) current is larger at a lower level of magnetic fluctuation. Experimental evidence supporting that the theory of hot tail RE generation might be playing a role has also been found. With higher temperature before the disruption, more REs are generated via the hot tail mechanism during the thermal quench. By increasing the hot tail RE generation by increasing the temperature, an obvious RE plateau is observed even with a low toroidal magnetic field (1.2 T).

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Contributing Institute(s):

1. Plasmaphysik (IEK-4)
2. Physik der Medizinischen Bildgebung (INM-4)

Research Program(s):

1. 174 - Plasma-Wall-Interaction (POF3-174) (POF3-174)

Appears in the scientific report 2017

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Database coverage:
Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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