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ELM-induced cold pulse propagation in ASDEX Upgrade

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Abstract
In ASDEX Upgrade, the propagation of cold pulses induced by type-I edge localized modes (ELMs) is studied using electron cyclotron emission measurements, in a dataset of plasmas with moderate triangularity. It is found that the edge safety factor or the plasma current are the main determining parameters for the inward penetration of the T-e perturbations. With increasing plasma current the ELM penetration is more shallow in spite of the stronger ELMs. Estimates of the heat pulse diffusivity show that the corresponding transport is too large to be representative of the inter-ELM phase. Ergodization of the plasma edge during ELMs is a possible explanation for the observed properties of the cold pulse propagation, which is qualitatively consistent with non-linear magneto-hydro-dynamic simulations.
Keywords
PARTICLE LOSSES, HEAT-TRANSPORT, H-MODE, ENERGY, CONFINEMENT, STABILITY, TOKAMAK, ELMs, MHD instabilities, stochastic field, magnetic islands, cold pulse

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Chicago
Trier, E., E. Wolfrum, M. Willensdorfer, Q. Yu, M. Hoelzl, F. Orain, F. Ryter, et al. 2019. “ELM-induced Cold Pulse Propagation in ASDEX Upgrade.” Plasma Physics and Controlled Fusion 61 (4).
APA
Trier, E., Wolfrum, E., Willensdorfer, M., Yu, Q., Hoelzl, M., Orain, F., Ryter, F., et al. (2019). ELM-induced cold pulse propagation in ASDEX Upgrade. PLASMA PHYSICS AND CONTROLLED FUSION, 61(4).
Vancouver
1.
Trier E, Wolfrum E, Willensdorfer M, Yu Q, Hoelzl M, Orain F, et al. ELM-induced cold pulse propagation in ASDEX Upgrade. PLASMA PHYSICS AND CONTROLLED FUSION. Bristol: Iop Publishing Ltd; 2019;61(4).
MLA
Trier, E. et al. “ELM-induced Cold Pulse Propagation in ASDEX Upgrade.” PLASMA PHYSICS AND CONTROLLED FUSION 61.4 (2019): n. pag. Print.
@article{8605364,
  abstract     = {In ASDEX Upgrade, the propagation of cold pulses induced by type-I edge localized modes (ELMs) is studied using electron cyclotron emission measurements, in a dataset of plasmas with moderate triangularity. It is found that the edge safety factor or the plasma current are the main determining parameters for the inward penetration of the T-e perturbations. With increasing plasma current the ELM penetration is more shallow in spite of the stronger ELMs. Estimates of the heat pulse diffusivity show that the corresponding transport is too large to be representative of the inter-ELM phase. Ergodization of the plasma edge during ELMs is a possible explanation for the observed properties of the cold pulse propagation, which is qualitatively consistent with non-linear magneto-hydro-dynamic simulations.},
  articleno    = {045003},
  author       = {Trier, E. and Wolfrum, E. and Willensdorfer, M. and Yu, Q. and Hoelzl, M. and Orain, F. and Ryter, F. and Angioni, C. and Bernert, M. and Dunne, M. G. and Denk, S. S. and Fuchs, J. C. and Fischer, R. and Hennequin, P. and Kurzan, B. and Mink, F. and Mlynek, A. and Odstrcil, T. and Schneider, P. A. and Stroth, U. and Tardini, G. and Vanovac, B. and Meyer, H. and Eich, T. and Beurskens, M. and Coda, S. and Hakola, A. and Martin, P. and Adamek, J. and Agostini, M. and Aguiam, D. and Ahn, J. and Aho-Mantila, L. and Akers, R. and Albanese, R. and Aledda, R. and Alessi, E. and Allan, S. and Alves, D. and Ambrosino, R. and Amicucci, L. and Anand, H. and Anastassiou, G. and Andrebe, Y. and Apruzzese, G. and Ariola, M. and Arnichand, H. and Arter, W. and Baciero, A. and Barnes, M. and Barrera, L. and Behn, R. and Bencze, A. and Bernardo, J. and Bettini, P. and Bilkova, P. and Bin, W. and Birkenmeier, G. and Bizarro, J. P. 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P. and Gorini, G. and Gospodarczyk, M. and Granucci, G. and Gruber, M. and Gude, A. and Guimarais, L. and Guirlet, R. and Gunn, J. and Hacek, P. and Hacquin, S. and Hall, S. and Ham, C. and Happel, T. and Harrison, J. and Harting, D. and Hauer, V and Havlickova, E. and Hellsten, T. and Helou, W. and Henderson, S. and Heyn, M. and Hnat, B. and Holzl, M. and Hogeweij, D. and Honore, C. and Hopf, C. and Horacek, J. and Hornung, G. and Horvath, L. and Huang, Z. and Huber, A. and Igitkhanov, J. and Igochine, V and Imrisek, M. and Innocente, P. and Ionita-Schrittwieser, C. and Isliker, H. and Ivanova-Stanik, I. and Jacobsen, A. S. and Jacquet, P. and Jakubowski, M. and Jardin, A. and Jaulmes, F. and Jenko, F. and Jensen, T. and Busk, O. 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E. and Puetterich, T. and Rack, M. and Ramogida, G. and Rapson, C. and Rasmussen, J. Juul and Rasmussen, J. and Ratta, G. A. and Ratynskaia, S. and Ravera, G. and Refy, D. and Reich, M. and Reimerdes, H. and Reimold, F. and Reinke, M. and Reiser, D. and Resnik, M. and Reux, C. and Ripamonti, D. and Rittich, D. and Riva, G. and Rodriguez-Ramos, M. and Rohde, V and Rosato, J. and Saarelma, S. and Sabot, R. and Saint-Laurent, F. and Salewski, M. and Salmi, A. and Samaddar, D. and Sanchis-Sanchez, L. and Santos, J. and Sauter, O. and Scannell, R. and Scheffer, M. and Schneider, M. and Schneider, B. and Schneider, P. and Schneller, M. and Schrittwieser, R. and Schubert, M. and Schweinzer, J. and Seidl, J. and Sertoli, M. and Sesnic, S. and Shabbir, A. and Shalpegin, A. and Shanahan, B. and Sharapov, S. and Sheikh, U. and Sias, G. and Sieglin, B. and Silva, C. and Silva, A. and Fuglister, M. Silva and Simpson, J. and Snicker, A. and Sommariva, C. and Sozzi, C. and Spagnolo, S. and Spizzo, G. and Spolaore, M. and Stange, T. and Pedersen, M. Stejner and Stepanov, I and Stober, J. and Strand, P. and Susnjara, A. and Suttrop, W. and Szepesi, T. and Tal, B. and Tala, T. and Tamain, P. and Tardocchi, M. and Teplukhina, A. and Terranova, D. and Testa, D. and Theiler, C. and Thornton, A. and Tolias, P. and Tophoj, L. and Treutterer, W. and Trevisan, G. L. and Tripsky, M. and Tsironis, C. and Tsui, C. and Tudisco, O. and Uccello, A. and Urban, J. and Valisa, M. and Vallejos, P. and Valovic, M. and Van den Brand, H. and Varoutis, S. and Vartanian, S. and Vega, J. and Verdoolaege, Geert and Verhaegh, K. and Vermare, L. and Vianello, N. and Vicente, J. and Viezzer, E. and Vignitchouk, L. and Vijvers, W. A. J. and Villone, F. and Viola, B. and Vlahos, L. and Voitsekhovitch, I and Vondracek, P. and Vu, N. M. T. and Wagner, D. and Walkden, N. and Wang, N. and Wauters, T. and Weiland, M. and Weinzettl, V and Westerhof, E. and Wiesenberger, M. and Wischmeier, M. and Wodniak, I and Yadykin, D. and Zagorski, R. and Zammuto, I and Zanca, P. and Zaplotnik, R. and Zestanakis, P. and Zhang, W. and Zoletnik, S. and Zuin, M.},
  issn         = {0741-3335},
  journal      = {PLASMA PHYSICS AND CONTROLLED FUSION},
  language     = {eng},
  number       = {4},
  pages        = {12},
  publisher    = {Iop Publishing Ltd},
  title        = {ELM-induced cold pulse propagation in ASDEX Upgrade},
  url          = {http://dx.doi.org/10.1088/1361-6587/aaf9c3},
  volume       = {61},
  year         = {2019},
}

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