Full suppression of runaway electron generation by the mode penetration of resonant magnetic perturbations during disruptions on J-TEXT

Lin, Z. F.; Chen, Z. Y.; Huang, D. W.; Huang, J.; Tong, RH; Wei, Y. N.; Yan, W.; Li, D.; Hu, Q. M.; Huang, Y.; Yang, H. Y.; Li, Y.; Zhang, X. Q.; Rao, B.; Yang, Z. J.; Gao, L.; Ding, Y. H.; Wang, Z. J.; Zhang, M.; Liang, Y.; Pan, Y.; Jiang, Z. H.

doi:10.1088/1361-6587/aaf691

Title: Full suppression of runaway electron generation by the mode penetration of resonant magnetic perturbations during disruptions on J-TEXT

Journal Article · Fri Jan 18 00:00:00 EST 2019 · Plasma Physics and Controlled Fusion

DOI:https://doi.org/10.1088/1361-6587/aaf691· OSTI ID:1513263

Lin, Z. F. ^[1];

^[2]; Huang, D. W. ^[1]; Huang, J. ^[1]; Tong, RH ^[1]; Wei, Y. N. ^[1]; Yan, W. ^[1]; Li, D. ^[1]; Hu, Q. M. ^[3]; Huang, Y. ^[1]; Yang, H. Y. ^[1]; Li, Y. ^[1]; Zhang, X. Q. ^[1]; Rao, B. ^[1]; Yang, Z. J. ^[1]; Gao, L. ^[1]; Ding, Y. H. ^[1]; Wang, Z. J. ^[1];

^[1]; Liang, Y. ^[1] more »

Huazhong Univ. of Science and Technology, Wuhan (China)
Huazhong Univ. of Science and Technology, Wuhan (China); Chengdu Univ. (China)
Huazhong Univ. of Science and Technology, Wuhan (China); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

The avoidance and suppression of runaway electron (RE) generation during disruptions is of great importance for the safe operation of tokamaks. Massive gas injection is enacted to suppress the generation of REs, but the poor gas mixing efficiency and extremely high density required to suppress RE generation make the full RE suppression unreliable. The magnetic perturbations provide an alternative RE suppression during disruptions. The use of mode penetration induced by resonant magnetic perturbations (RMPs) to suppress RE generation has been investigated on the J-TEXT tokamak. For a sufficiently long mode penetration duration, robust runaway suppression has been reached during the disruptions. The m/n = 2/1 mode RMP with high amplitude excites large magnetic islands inside the plasma and leads to the large-scale destruction of magnetic surfaces during disruptions, which results in RE loss and runaway-free disruptions. The essential island width required for runaway suppression is estimated to be larger than 0.16 as the minor radius. This value might be slightly underestimated because of the misalignment between the electron cyclotron emission diagnostic and the island O-point. NIMROD simulations are used to investigate the effect of magnetic islands on RE generation during disruption, showing that the large magnetic islands have the ability to enhance RE seed loss during disruptions. RMP can excite large magnetic islands in the target plasma without tearing mode and might be a way to prevent RE generation during disruptions.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: J-TEXT Team

Grant/Contract Number:: Nos. 11775089; 71762031 and 11575068; Nos. 2015GB111002; 2015GB104000

OSTI ID:: 1513263

Journal Information:: Plasma Physics and Controlled Fusion, Vol. 61, Issue 2; ISSN 0741-3335

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 14 works

Citation information provided by
Web of Science

References (36)

Experimental study of disruption mitigation using massive injection of noble gases on Tore Supra Reux, C.; Bucalossi, J.; Saint-Laurent, F. Nuclear Fusion, Vol. 50, Issue 9 https://doi.org/10.1088/0029-5515/50/9/095006	journal	July 2010
Mechanism of runaway electron beam formation during plasma disruptions in tokamaks Abdullaev, S. S.; Finken, K. H.; Wongrach, K. Physics of Plasmas, Vol. 22, Issue 4 https://doi.org/10.1063/1.4919253	journal	April 2015
Study of the penetration of resonant magnetic perturbations in J-TEXT Wang, Nengchao; Rao, Bo; Hu, Qiming Nuclear Fusion, Vol. 54, Issue 6 https://doi.org/10.1088/0029-5515/54/6/064014	journal	May 2014
Nonlinear magnetohydrodynamics simulation using high-order finite elements Sovinec, C. R.; Glasser, A. H.; Gianakon, T. A. Journal of Computational Physics, Vol. 195, Issue 1 https://doi.org/10.1016/j.jcp.2003.10.004	journal	March 2004
JET disruption studies in support of ITER Riccardo, V.; Arnoux, G.; Cahyna, P. Plasma Physics and Controlled Fusion, Vol. 52, Issue 12 https://doi.org/10.1088/0741-3335/52/12/124018	journal	November 2010
An ITPA joint experiment to study runaway electron generation and suppression Granetz, R. S.; Esposito, B.; Kim, J. H. Physics of Plasmas, Vol. 21, Issue 7 https://doi.org/10.1063/1.4886802	journal	July 2014
Effect of resonant magnetic perturbations on COMPASS-C tokamak discharges Hender, T. C.; Fitzpatrick, R.; Morris, A. W. Nuclear Fusion, Vol. 32, Issue 12 https://doi.org/10.1088/0029-5515/32/12/I02	journal	December 1992
Simulation of runaway electron generation during plasma shutdown by impurity injection in ITER Fehér, T.; Smith, H. M.; Fülöp, T. Plasma Physics and Controlled Fusion, Vol. 53, Issue 3 https://doi.org/10.1088/0741-3335/53/3/035014	journal	February 2011
Introduction to resonant magnetic perturbation coils of the J-TEXT Tokamak Rao, B.; Wang, G.; Ding, Y. H. Fusion Engineering and Design, Vol. 89, Issue 4 https://doi.org/10.1016/j.fusengdes.2014.03.038	journal	April 2014
Recent research work on the J-TEXT tokamak Zhuang, G.; Gentle, K. W.; Rao, B. Nuclear Fusion, Vol. 53, Issue 10 https://doi.org/10.1088/0029-5515/53/10/104014	journal	September 2013
Suppression of runaway electron avalanches by radial diffusion Helander, P.; Eriksson, L. -G.; Andersson, F. Physics of Plasmas, Vol. 7, Issue 10 https://doi.org/10.1063/1.1289892	journal	January 2000
Behaviour of disruption generated runaways in JET Gill, R. D.; Alper, B.; Baar, M. de Nuclear Fusion, Vol. 42, Issue 8 https://doi.org/10.1088/0029-5515/42/8/312	journal	August 2002
The effect of pre-existing islands on disruption mitigation in MHD simulations of DIII-D Izzo, V. A. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4977462	journal	May 2017
Runaway generation during disruptions in JET and TEXTOR Lehnen, M.; Abdullaev, S. S.; Arnoux, G. Journal of Nuclear Materials, Vol. 390-391 https://doi.org/10.1016/j.jnucmat.2009.01.200	journal	June 2009
Suppression of Runaway Electrons by Resonant Magnetic Perturbations in TEXTOR Disruptions Lehnen, M.; Bozhenkov, S. A.; Abdullaev, S. S. Physical Review Letters, Vol. 100, Issue 25 https://doi.org/10.1103/PhysRevLett.100.255003	journal	June 2008
Runaway electrons in magnetic turbulence and runaway current termination in tokamak discharges Yoshino, R.; Tokuda, S. Nuclear Fusion, Vol. 40, Issue 7 https://doi.org/10.1088/0029-5515/40/7/302	journal	July 2000
Drift resonance effect on stochastic runaway electron orbit in the presence of low-order magnetic perturbations Matsuyama, A.; Yagi, M.; Kagei, Y. Nuclear Fusion, Vol. 54, Issue 12 https://doi.org/10.1088/0029-5515/54/12/123007	journal	November 2014
Note: Measurement of the runaway electrons in the J-TEXT tokamak Chen, Z. Y.; Zhang, Y.; Zhang, X. Q. Review of Scientific Instruments, Vol. 83, Issue 5 https://doi.org/10.1063/1.4721659	journal	May 2012
Runaway electron drift orbits in magnetostatic perturbed fields Papp, G.; Drevlak, M.; Fülöp, T. Nuclear Fusion, Vol. 51, Issue 4 https://doi.org/10.1088/0029-5515/51/4/043004	journal	March 2011
Observation of runaway electrons by infrared camera in J-TEXT Tong, R. H.; Chen, Z. Y.; Zhang, M. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4960311	journal	August 2016
Runaway losses in ergodized plasmas Finken, K. H.; Abdullaev, S. S.; Jakubowski, M. W. Nuclear Fusion, Vol. 47, Issue 2 https://doi.org/10.1088/0029-5515/47/2/004	journal	January 2007
Runaway electron mitigation by 3D fields in the ASDEX-Upgrade experiment Gobbin, M.; Li, L.; Liu, Y. Q. Plasma Physics and Controlled Fusion, Vol. 60, Issue 1 https://doi.org/10.1088/1361-6587/aa90c4	journal	November 2017
Generation and suppression of runaway electrons in disruption mitigation experiments in TEXTOR Bozhenkov, S. A.; Lehnen, M.; Finken, K. H. Plasma Physics and Controlled Fusion, Vol. 50, Issue 10 https://doi.org/10.1088/0741-3335/50/10/105007	journal	August 2008
Designing of the massive gas injection valve for the joint Texas experimental tokamak Luo, Y. H.; Chen, Z. Y.; Tang, Y. Review of Scientific Instruments, Vol. 85, Issue 8 https://doi.org/10.1063/1.4891864	journal	August 2014
Runaway electron damage to the Tore Supra Phase III outboard pump limiter Nygren, R.; Lutz, T.; Walsh, D. Journal of Nuclear Materials, Vol. 241-243 https://doi.org/10.1016/S0022-3115(97)80092-X	journal	February 1997
Study of runaway electron generation during major disruptions in JET Plyusnin, V. V.; Riccardo, V.; Jaspers, R. Nuclear Fusion, Vol. 46, Issue 2 https://doi.org/10.1088/0029-5515/46/2/011	journal	January 2006
Mode locking in tokamaks Nave, M. F. F.; Wesson, J. A. Nuclear Fusion, Vol. 30, Issue 12 https://doi.org/10.1088/0029-5515/30/12/011	journal	December 1990
Theory for avalanche of runaway electrons in tokamaks Rosenbluth, M. N.; Putvinski, S. V. Nuclear Fusion, Vol. 37, Issue 10 https://doi.org/10.1088/0029-5515/37/10/I03	journal	October 1997
Novel rapid shutdown strategies for runaway electron suppression in DIII-D Commaux, N.; Baylor, L. R.; Combs, S. K. Nuclear Fusion, Vol. 51, Issue 10 https://doi.org/10.1088/0029-5515/51/10/103001	journal	August 2011
Runaway beam studies during disruptions at JET-ILW Reux, C.; Plyusnin, V.; Alper, B. Journal of Nuclear Materials, Vol. 463 https://doi.org/10.1016/j.jnucmat.2014.10.002	journal	August 2015
The effect of resonant magnetic perturbations on runaway electron transport in ITER Papp, G.; Drevlak, M.; Fülöp, T. Plasma Physics and Controlled Fusion, Vol. 54, Issue 12 https://doi.org/10.1088/0741-3335/54/12/125008	journal	November 2012
First demonstration of rapid shutdown using neon shattered pellet injection for thermal quench mitigation on DIII-D Commaux, N.; Shiraki, D.; Baylor, L. R. Nuclear Fusion, Vol. 56, Issue 4 https://doi.org/10.1088/0029-5515/56/4/046007	journal	March 2016
Plasma shut-down with fast impurity puff on ASDEX Upgrade Pautasso, G.; Fuchs, C. J.; Gruber, O. Nuclear Fusion, Vol. 47, Issue 8 https://doi.org/10.1088/0029-5515/47/8/023	journal	July 2007
Photoneutron production accompanying plasma disruptions in JET Jarvis, O. N.; Sadler, G.; Thompson, J. L. Nuclear Fusion, Vol. 28, Issue 11 https://doi.org/10.1088/0029-5515/28/11/005	journal	November 1988
Losses of runaway electrons during ergodization Finken, K. H.; Abdullaev, S. S.; Jakubowski, M. Nuclear Fusion, Vol. 46, Issue 4 https://doi.org/10.1088/0029-5515/46/4/S04	journal	March 2006
Experimental Observation of a Magnetic-Turbulence Threshold for Runaway-Electron Generation in the TEXTOR Tokamak Zeng, L.; Koslowski, H. R.; Liang, Y. Physical Review Letters, Vol. 110, Issue 23 https://doi.org/10.1103/PhysRevLett.110.235003	journal	June 2013

Cited By (1)

Simulations of the effects of pre-seeded magnetic islands on the generation of runaway current during disruption on J-TEXT Jiang, Z. H.; Huang, J.; Tong, R. H. Physics of Plasmas, Vol. 26, Issue 6 https://doi.org/10.1063/1.5100093	journal	June 2019

Similar Records

Overview of the recent experimental research on the J-TEXT tokamak

Journal Article · Mon Jul 22 00:00:00 EDT 2019 · Nuclear Fusion · OSTI ID:1513263

Liang, Y.; Wang, N. C.; Ding, Y. H.; +34 more

Advances in physics and applications of 3D magnetic perturbations on the J-TEXT tokamak

Journal Article · Mon Mar 21 00:00:00 EDT 2022 · Nuclear Fusion · OSTI ID:1513263

Wang, Nengchao; Liang, Y.; Ding, Yonghua; +46 more

Computational study of runaway electrons in MST tokamak discharges with applied resonant magnetic perturbation

Journal Article · Mon May 23 00:00:00 EDT 2022 · Physics of Plasmas · OSTI ID:1513263

Cornille, Brian S.; Beidler, Matthew T.; Munaretto, Stefano; +5 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Title: Full suppression of runaway electron generation by the mode penetration of resonant magnetic perturbations during disruptions on J-TEXT

Citation Formats

References (36)

Cited By (1)

Similar Records

Related Subjects