Runaway beam studies during disruptions at JET-ILW

C. Reux; V. Plyusnin; B. Alper; D. Alves; B. Bazylev; E. Belonohy; S. Brezinsek; J. Decker; S. Devaux; P. De Vries; A. Fil; S. Gerasimov; I. Lupelli; S. Jachmich; E. M. Khilkevitch; V. Kiptily; R. Koslowski; U. Kruezi; M. Lehnen; A. Manzanares; J. Mlynář; E. Nardon; E. Nilsson; V. Riccardo; F. Saint-Laurent; A. E. Shevelev; C. Sozzi

doi:10.1016/j.jnucmat.2014.10.002

Runaway beam studies during disruptions at JET-ILW

C. Reux, V. Plyusnin, B. Alper, D. Alves, B. Bazylev, E. Belonohy, S. Brezinsek, J. Decker, S. Devaux, P. De Vries, A. Fil, S. Gerasimov, I. Lupelli, S. Jachmich, E. M. Khilkevitch, V. Kiptily, R. Koslowski, U. Kruezi, M. Lehnen, A. ManzanaresJ. Mlynář, E. Nardon, E. Nilsson, V. Riccardo, F. Saint-Laurent, A. E. Shevelev, C. Sozzi

Laboratory for Plasma Physics

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

Abstract

Abstract Runaway electrons (RE) during disruptions are a concern for future tokamaks including ITER with its metallic wall. Although RE are rare in spontaneous disruptions with the JET ITER-like Wall (JET-ILW), RE beams up to 380 kA were obtained using massive injection (MGI) of argon in JET-ILW divertor discharges. Entry points into the RE domain defined by operational parameters (toroidal field, argon fraction in MGI) are unchanged but higher RE currents have been obtained inside the JET-ILW MGI-generated RE domain when compared to JET-C. This might be due to the influence of the metallic wall on the current quench plasma. Temperatures of 900°C have been observed following RE impacts on beryllium tiles. Heat deposition depth of ∼2 mm has to be assumed to match the tile cooling time. 3D simulations of the RE energy deposition using the ENDEP/MEMOS codes show that material melting is unlikely with 100 kA RE beams.

Originalsprache	Englisch
Aufsatznummer	48498
Seiten (von - bis)	143-149
Seitenumfang	7
Fachzeitschrift	Journal of Nuclear Materials
Jahrgang	463
DOIs	https://doi.org/10.1016/j.jnucmat.2014.10.002
Publikationsstatus	Veröffentlicht - 22 Juli 2015

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10.1016/j.jnucmat.2014.10.002

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Reux, C., Plyusnin, V., Alper, B., Alves, D., Bazylev, B., Belonohy, E., Brezinsek, S., Decker, J., Devaux, S., De Vries, P., Fil, A., Gerasimov, S., Lupelli, I., Jachmich, S., Khilkevitch, E. M., Kiptily, V., Koslowski, R., Kruezi, U., Lehnen, M., ... Sozzi, C. (2015). Runaway beam studies during disruptions at JET-ILW. Journal of Nuclear Materials, 463, 143-149. Artikel 48498. https://doi.org/10.1016/j.jnucmat.2014.10.002

@article{ef14896bb09645d6b616a78aeb105a41,

title = "Runaway beam studies during disruptions at JET-ILW",

abstract = "Abstract Runaway electrons (RE) during disruptions are a concern for future tokamaks including ITER with its metallic wall. Although RE are rare in spontaneous disruptions with the JET ITER-like Wall (JET-ILW), RE beams up to 380 kA were obtained using massive injection (MGI) of argon in JET-ILW divertor discharges. Entry points into the RE domain defined by operational parameters (toroidal field, argon fraction in MGI) are unchanged but higher RE currents have been obtained inside the JET-ILW MGI-generated RE domain when compared to JET-C. This might be due to the influence of the metallic wall on the current quench plasma. Temperatures of 900°C have been observed following RE impacts on beryllium tiles. Heat deposition depth of ∼2 mm has to be assumed to match the tile cooling time. 3D simulations of the RE energy deposition using the ENDEP/MEMOS codes show that material melting is unlikely with 100 kA RE beams.",

author = "C. Reux and V. Plyusnin and B. Alper and D. Alves and B. Bazylev and E. Belonohy and S. Brezinsek and J. Decker and S. Devaux and {De Vries}, P. and A. Fil and S. Gerasimov and I. Lupelli and S. Jachmich and Khilkevitch, {E. M.} and V. Kiptily and R. Koslowski and U. Kruezi and M. Lehnen and A. Manzanares and J. Mlyn{\'a}{\v r} and E. Nardon and E. Nilsson and V. Riccardo and F. Saint-Laurent and Shevelev, {A. E.} and C. Sozzi",

note = "Publisher Copyright: {\textcopyright} 2014 EURATOM.",

year = "2015",

month = jul,

day = "22",

doi = "10.1016/j.jnucmat.2014.10.002",

language = "English",

volume = "463",

pages = "143--149",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

}

Reux, C, Plyusnin, V, Alper, B, Alves, D, Bazylev, B, Belonohy, E, Brezinsek, S, Decker, J, Devaux, S, De Vries, P, Fil, A, Gerasimov, S, Lupelli, I, Jachmich, S, Khilkevitch, EM, Kiptily, V, Koslowski, R, Kruezi, U, Lehnen, M, Manzanares, A, Mlynář, J, Nardon, E, Nilsson, E, Riccardo, V, Saint-Laurent, F, Shevelev, AE & Sozzi, C 2015, 'Runaway beam studies during disruptions at JET-ILW', Journal of Nuclear Materials, Jg. 463, 48498, S. 143-149. https://doi.org/10.1016/j.jnucmat.2014.10.002

TY - JOUR

T1 - Runaway beam studies during disruptions at JET-ILW

AU - Reux, C.

AU - Plyusnin, V.

AU - Alper, B.

AU - Alves, D.

AU - Bazylev, B.

AU - Belonohy, E.

AU - Brezinsek, S.

AU - Decker, J.

AU - Devaux, S.

AU - De Vries, P.

AU - Fil, A.

AU - Gerasimov, S.

AU - Lupelli, I.

AU - Jachmich, S.

AU - Khilkevitch, E. M.

AU - Kiptily, V.

AU - Koslowski, R.

AU - Kruezi, U.

AU - Lehnen, M.

AU - Manzanares, A.

AU - Mlynář, J.

AU - Nardon, E.

AU - Nilsson, E.

AU - Riccardo, V.

AU - Saint-Laurent, F.

AU - Shevelev, A. E.

AU - Sozzi, C.

PY - 2015/7/22

Y1 - 2015/7/22

N2 - Abstract Runaway electrons (RE) during disruptions are a concern for future tokamaks including ITER with its metallic wall. Although RE are rare in spontaneous disruptions with the JET ITER-like Wall (JET-ILW), RE beams up to 380 kA were obtained using massive injection (MGI) of argon in JET-ILW divertor discharges. Entry points into the RE domain defined by operational parameters (toroidal field, argon fraction in MGI) are unchanged but higher RE currents have been obtained inside the JET-ILW MGI-generated RE domain when compared to JET-C. This might be due to the influence of the metallic wall on the current quench plasma. Temperatures of 900°C have been observed following RE impacts on beryllium tiles. Heat deposition depth of ∼2 mm has to be assumed to match the tile cooling time. 3D simulations of the RE energy deposition using the ENDEP/MEMOS codes show that material melting is unlikely with 100 kA RE beams.

AB - Abstract Runaway electrons (RE) during disruptions are a concern for future tokamaks including ITER with its metallic wall. Although RE are rare in spontaneous disruptions with the JET ITER-like Wall (JET-ILW), RE beams up to 380 kA were obtained using massive injection (MGI) of argon in JET-ILW divertor discharges. Entry points into the RE domain defined by operational parameters (toroidal field, argon fraction in MGI) are unchanged but higher RE currents have been obtained inside the JET-ILW MGI-generated RE domain when compared to JET-C. This might be due to the influence of the metallic wall on the current quench plasma. Temperatures of 900°C have been observed following RE impacts on beryllium tiles. Heat deposition depth of ∼2 mm has to be assumed to match the tile cooling time. 3D simulations of the RE energy deposition using the ENDEP/MEMOS codes show that material melting is unlikely with 100 kA RE beams.

UR - http://www.scopus.com/inward/record.url?scp=84937731410&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2014.10.002

DO - 10.1016/j.jnucmat.2014.10.002

M3 - Article

AN - SCOPUS:84937731410

SN - 0022-3115

VL - 463

SP - 143

EP - 149

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

M1 - 48498

ER -

Runaway beam studies during disruptions at JET-ILW

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