Influence of magnetic field ripple on the intrinsic rotation of tokamak plasmas

M. F.F. Nave; T. Johnson; L. G. Eriksson; K. Crombé; C. Giroud; M. L. Mayoral; J. Ongena; A. Salmi; T. Tala; M. Tsalas

doi:10.1103/PhysRevLett.105.105005

Influence of magnetic field ripple on the intrinsic rotation of tokamak plasmas

M. F.F. Nave
, T. Johnson
, L. G. Eriksson
, K. Crombé
, C. Giroud
, M. L. Mayoral
, J. Ongena
, A. Salmi
, T. Tala
, M. Tsalas

Laboratory for Plasma Physics

Instituto Superior Técnico
KTH Royal Institute of Technology
European Commission
Culham Centre for Fusion Energy
Helsinki University of Technology
Association EURATOM-Hellenic Republic

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

37 Zitate (Scopus)

Abstract

Using the unique capability of JET to monotonically change the amplitude of the magnetic field ripple, without modifying other relevant equilibrium conditions, the effect of the ripple on the angular rotation frequency of the plasma column was investigated under the conditions of no external momentum input. The ripple amplitude was varied from 0.08% to 1.5% in Ohmic and ion-cyclotron radio-frequency (ICRF) heated plasmas. In both cases the ripple causes counterrotation, indicating a strong torque due to nonambipolar transport of thermal ions and in the case of ICRF also fast ions.

Originalsprache	Englisch
Aufsatznummer	105005
Fachzeitschrift	Physical Review Letters
Jahrgang	105
Ausgabenummer	10
DOIs	https://doi.org/10.1103/PhysRevLett.105.105005
Publikationsstatus	Veröffentlicht - 3 Sept. 2010

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10.1103/PhysRevLett.105.105005

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title = "Influence of magnetic field ripple on the intrinsic rotation of tokamak plasmas",

abstract = "Using the unique capability of JET to monotonically change the amplitude of the magnetic field ripple, without modifying other relevant equilibrium conditions, the effect of the ripple on the angular rotation frequency of the plasma column was investigated under the conditions of no external momentum input. The ripple amplitude was varied from 0.08\% to 1.5\% in Ohmic and ion-cyclotron radio-frequency (ICRF) heated plasmas. In both cases the ripple causes counterrotation, indicating a strong torque due to nonambipolar transport of thermal ions and in the case of ICRF also fast ions.",

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year = "2010",

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doi = "10.1103/PhysRevLett.105.105005",

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AU - Nave, M. F.F.

AU - Johnson, T.

AU - Eriksson, L. G.

AU - Crombé, K.

AU - Giroud, C.

AU - Mayoral, M. L.

AU - Ongena, J.

AU - Salmi, A.

AU - Tala, T.

AU - Tsalas, M.

PY - 2010/9/3

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N2 - Using the unique capability of JET to monotonically change the amplitude of the magnetic field ripple, without modifying other relevant equilibrium conditions, the effect of the ripple on the angular rotation frequency of the plasma column was investigated under the conditions of no external momentum input. The ripple amplitude was varied from 0.08% to 1.5% in Ohmic and ion-cyclotron radio-frequency (ICRF) heated plasmas. In both cases the ripple causes counterrotation, indicating a strong torque due to nonambipolar transport of thermal ions and in the case of ICRF also fast ions.

AB - Using the unique capability of JET to monotonically change the amplitude of the magnetic field ripple, without modifying other relevant equilibrium conditions, the effect of the ripple on the angular rotation frequency of the plasma column was investigated under the conditions of no external momentum input. The ripple amplitude was varied from 0.08% to 1.5% in Ohmic and ion-cyclotron radio-frequency (ICRF) heated plasmas. In both cases the ripple causes counterrotation, indicating a strong torque due to nonambipolar transport of thermal ions and in the case of ICRF also fast ions.

UR - https://www.scopus.com/pages/publications/77956325110

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DO - 10.1103/PhysRevLett.105.105005

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 105005

ER -

Influence of magnetic field ripple on the intrinsic rotation of tokamak plasmas

Abstract

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