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Experimental observation of hot tail runaway electron generation in TEXTOR disruptions

Part of: Energetic Electrons

Published online by Cambridge University Press:  14 April 2015

L. Zeng ,
H. R. Koslowski ,
Y. Liang ,
A. Lvovskiy ,
M. Lehnen ,
D. Nicolai ,
J. Pearson ,
M. Rack ,
P. Denner  and
K. H. Finken
...Show all authors
L. Zeng*
Affiliation:
Institute of Plasma Physics, Chinese Academy of Sciences, 230031 Hefei, China
H. R. Koslowski
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
Y. Liang
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
A. Lvovskiy
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
M. Lehnen
Affiliation:
ITER Organization, Route de Vinon sur Verdon, 13115 St Paul Lez Durance, France
D. Nicolai
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
J. Pearson
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
M. Rack
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
P. Denner
Affiliation:
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Plasma Physics (IEK-4), 52425 Jülich, Germany
K. H. Finken
Affiliation:
Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
K. Wongrach
Affiliation:
Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
*
†Email address for correspondence: [email protected]
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Abstract

Experimental evidence supporting the theory of hot tail runaway electron (RE) generation has been identified in TEXTOR disruptions. With higher temperature, more REs are generated during the thermal quench. Increasing the RE generation by increasing the temperature, an obvious RE plateau is observed even with low toroidal magnetic field (1.7 T). These results explain the previously found electron density threshold for RE generation.

Type
Research Article
Information
Journal of Plasma Physics , Volume 81 , Issue 4 , August 2015 , 475810402
Copyright
Copyright © Cambridge University Press 2015 

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References

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