This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1088/1741-4326/aa57d9 in citations.
Runaway electron generation during disruptions in the J-TEXT tokamak
Runaway electron generation during disruptions in the J-TEXT tokamak
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. Magneti...
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Personal Name(s): | Zeng, L. (Corresponding author) |
---|---|
Chen, Z. Y. / Dong, Y. B. / Koslowski, H. R. (Corresponding author) / Liang, Yunfeng / Zhang, Y. P. / Zhuang, H. D. / Huang, D. W. / Gao, X. | |
Contributing Institute: |
Plasmaphysik; IEK-4 Physik der Medizinischen Bildgebung; INM-4 |
Published in: | Nuclear fusion, 57 (2017) 4, S. 046001 - |
Imprint: |
Vienna
IAEA
2017
|
DOI: |
10.1088/1741-4326/aa57d9 |
Document Type: |
Journal Article |
Research Program: |
Plasma-Wall-Interaction |
Publikationsportal JuSER |
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). |