Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak

Y. Liang; H. R. Koslowski; P. R. Thomas; E. Nardon; B. Alper; P. Andrew; Y. Andrew; G. Arnoux; Y. Baranov; M. Bécoulet; M. Beurskens; T. Biewer; M. Bigi; K. Crombe; E. De La Luna; P. De Vries; W. Fundamenski; S. Gerasimov; C. Giroud; M. P. Gryaznevich; N. Hawkes; S. Hotchin; D. Howell; S. Jachmich; V. Kiptily; L. Moreira; V. Parail; S. D. Pinches; E. Rachlew; O. Zimmermann

doi:10.1103/PhysRevLett.98.265004

Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak

Y. Liang
, H. R. Koslowski
, P. R. Thomas
, E. Nardon
, B. Alper
, P. Andrew
, Y. Andrew
, G. Arnoux
, Y. Baranov
, M. Bécoulet
, M. Beurskens
, T. Biewer
, M. Bigi
, K. Crombe
, E. De La Luna
, P. De Vries
, W. Fundamenski
, S. Gerasimov
, C. Giroud
, M. P. Gryaznevich

N. Hawkes, S. Hotchin, D. Howell, S. Jachmich, V. Kiptily, L. Moreira, V. Parail, S. D. Pinches, E. Rachlew, O. Zimmermann

Research output: Contribution to journal › Article › peer-review

591 Scopus citations

Abstract

Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the Dα signal decreased. The energy loss per ELM normalized to the total stored energy, ΔW/W, dropped to values below 2%. Transport analyses shows no or only a moderate (up to 20%) degradation of energy confinement time during the ELM mitigation phase.

Original language	English
Article number	265004
Journal	Physical Review Letters
Volume	98
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.98.265004
State	Published - Jun 29 2007

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10.1103/PhysRevLett.98.265004

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Liang, Y., Koslowski, H. R., Thomas, P. R., Nardon, E., Alper, B., Andrew, P., Andrew, Y., Arnoux, G., Baranov, Y., Bécoulet, M., Beurskens, M., Biewer, T., Bigi, M., Crombe, K., De La Luna, E., De Vries, P., Fundamenski, W., Gerasimov, S., Giroud, C., ... Zimmermann, O. (2007). Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak. Physical Review Letters, 98(26), Article 265004. https://doi.org/10.1103/PhysRevLett.98.265004

@article{a4240497af6f4bc4a741cc7e83995fdf,

title = "Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak",

abstract = "Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the Dα signal decreased. The energy loss per ELM normalized to the total stored energy, ΔW/W, dropped to values below 2\%. Transport analyses shows no or only a moderate (up to 20\%) degradation of energy confinement time during the ELM mitigation phase.",

author = "Y. Liang and Koslowski, \{H. R.\} and Thomas, \{P. R.\} and E. Nardon and B. Alper and P. Andrew and Y. Andrew and G. Arnoux and Y. Baranov and M. B{\'e}coulet and M. Beurskens and T. Biewer and M. Bigi and K. Crombe and \{De La Luna\}, E. and \{De Vries\}, P. and W. Fundamenski and S. Gerasimov and C. Giroud and Gryaznevich, \{M. P.\} and N. Hawkes and S. Hotchin and D. Howell and S. Jachmich and V. Kiptily and L. Moreira and V. Parail and Pinches, \{S. D.\} and E. Rachlew and O. Zimmermann",

year = "2007",

month = jun,

day = "29",

doi = "10.1103/PhysRevLett.98.265004",

language = "English",

volume = "98",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "26",

}

Liang, Y, Koslowski, HR, Thomas, PR, Nardon, E, Alper, B, Andrew, P, Andrew, Y, Arnoux, G, Baranov, Y, Bécoulet, M, Beurskens, M, Biewer, T, Bigi, M, Crombe, K, De La Luna, E, De Vries, P, Fundamenski, W, Gerasimov, S, Giroud, C, Gryaznevich, MP, Hawkes, N, Hotchin, S, Howell, D, Jachmich, S, Kiptily, V, Moreira, L, Parail, V, Pinches, SD, Rachlew, E & Zimmermann, O 2007, 'Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak', Physical Review Letters, vol. 98, no. 26, 265004. https://doi.org/10.1103/PhysRevLett.98.265004

TY - JOUR

T1 - Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak

AU - Liang, Y.

AU - Koslowski, H. R.

AU - Thomas, P. R.

AU - Nardon, E.

AU - Alper, B.

AU - Andrew, P.

AU - Andrew, Y.

AU - Arnoux, G.

AU - Baranov, Y.

AU - Bécoulet, M.

AU - Beurskens, M.

AU - Biewer, T.

AU - Bigi, M.

AU - Crombe, K.

AU - De La Luna, E.

AU - De Vries, P.

AU - Fundamenski, W.

AU - Gerasimov, S.

AU - Giroud, C.

AU - Gryaznevich, M. P.

AU - Hawkes, N.

AU - Hotchin, S.

AU - Howell, D.

AU - Jachmich, S.

AU - Kiptily, V.

AU - Moreira, L.

AU - Parail, V.

AU - Pinches, S. D.

AU - Rachlew, E.

AU - Zimmermann, O.

PY - 2007/6/29

Y1 - 2007/6/29

N2 - Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the Dα signal decreased. The energy loss per ELM normalized to the total stored energy, ΔW/W, dropped to values below 2%. Transport analyses shows no or only a moderate (up to 20%) degradation of energy confinement time during the ELM mitigation phase.

AB - Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the Dα signal decreased. The energy loss per ELM normalized to the total stored energy, ΔW/W, dropped to values below 2%. Transport analyses shows no or only a moderate (up to 20%) degradation of energy confinement time during the ELM mitigation phase.

UR - https://www.scopus.com/pages/publications/34547382532

U2 - 10.1103/PhysRevLett.98.265004

DO - 10.1103/PhysRevLett.98.265004

M3 - Article

AN - SCOPUS:34547382532

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 26

M1 - 265004

ER -

Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak

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