A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear

P. Mantica; C. Challis; A.G. Peeters; D. Strintzi; T. Tala; M. Tsalas; P.C. deVries; B. Baiocchi; M. Baruzzo; J. Bizarro; P. Buratti; J. Citrin; G. Colyer; F. Crisanti; X. Garbet; C. Giroud; N. Hawkes; J. Hobirk; F. Imbeaux; E. Joffrin; T. Johnson; E. Lerche; J. Mailloux; Volker Naulin; A. Salmi; C. Sozzi; G. Staebler; D. Van Eester; T. Versloot; J. Weiland

doi:10.1103/PhysRevLett.107.135004

A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear

P. Mantica, C. Challis, A.G. Peeters, D. Strintzi, T. Tala, M. Tsalas, P.C. deVries, B. Baiocchi, M. Baruzzo, J. Bizarro, P. Buratti, J. Citrin, G. Colyer, F. Crisanti, X. Garbet, C. Giroud, N. Hawkes, J. Hobirk, F. Imbeaux, E. JoffrinT. Johnson, E. Lerche, J. Mailloux, Volker Naulin, A. Salmi, C. Sozzi, G. Staebler, D. Van Eester, T. Versloot, J. Weiland

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Abstract

New transport experiments on JET indicate that ion stiffness mitigation in the core of a rotating plasma, as described by Mantica et al. Phys. Rev. Lett. 102 175002 (2009)] results from the combined effect of high rotational shear and low magnetic shear. The observations have important implications for the understanding of improved ion core confinement in advanced tokamak scenarios. Simulations using quasilinear fluid and gyrofluid models show features of stiffness mitigation, while nonlinear gyrokinetic simulations do not. The JET experiments indicate that advanced tokamak scenarios in future devices will require sufficient rotational shear and the capability of q profile manipulation. © 2011 American Physical Society

Original language	English
Journal	Physical Review Letters
Volume	107
Issue number	13
Pages (from-to)	135004
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.107.135004
Publication status	Published - 2011

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Fusion energy

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Mantica, P., Challis, C., Peeters, A. G., Strintzi, D., Tala, T., Tsalas, M., deVries, P. C., Baiocchi, B., Baruzzo, M., Bizarro, J., Buratti, P., Citrin, J., Colyer, G., Crisanti, F., Garbet, X., Giroud, C., Hawkes, N., Hobirk, J., Imbeaux, F., ... Weiland, J. (2011). A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear. Physical Review Letters, 107(13), 135004. https://doi.org/10.1103/PhysRevLett.107.135004

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title = "A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear",

abstract = "New transport experiments on JET indicate that ion stiffness mitigation in the core of a rotating plasma, as described by Mantica et al. Phys. Rev. Lett. 102 175002 (2009)] results from the combined effect of high rotational shear and low magnetic shear. The observations have important implications for the understanding of improved ion core confinement in advanced tokamak scenarios. Simulations using quasilinear fluid and gyrofluid models show features of stiffness mitigation, while nonlinear gyrokinetic simulations do not. The JET experiments indicate that advanced tokamak scenarios in future devices will require sufficient rotational shear and the capability of q profile manipulation. {\textcopyright} 2011 American Physical Society",

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author = "P. Mantica and C. Challis and A.G. Peeters and D. Strintzi and T. Tala and M. Tsalas and P.C. deVries and B. Baiocchi and M. Baruzzo and J. Bizarro and P. Buratti and J. Citrin and G. Colyer and F. Crisanti and X. Garbet and C. Giroud and N. Hawkes and J. Hobirk and F. Imbeaux and E. Joffrin and T. Johnson and E. Lerche and J. Mailloux and Volker Naulin and A. Salmi and C. Sozzi and G. Staebler and {Van Eester}, D. and T. Versloot and J. Weiland",

year = "2011",

doi = "10.1103/PhysRevLett.107.135004",

language = "English",

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pages = "135004",

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Mantica, P, Challis, C, Peeters, AG, Strintzi, D, Tala, T, Tsalas, M, deVries, PC, Baiocchi, B, Baruzzo, M, Bizarro, J, Buratti, P, Citrin, J, Colyer, G, Crisanti, F, Garbet, X, Giroud, C, Hawkes, N, Hobirk, J, Imbeaux, F, Joffrin, E, Johnson, T, Lerche, E, Mailloux, J, Naulin, V, Salmi, A, Sozzi, C, Staebler, G, Van Eester, D, Versloot, T & Weiland, J 2011, 'A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear', Physical Review Letters, vol. 107, no. 13, pp. 135004. https://doi.org/10.1103/PhysRevLett.107.135004

TY - JOUR

T1 - A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear

AU - Mantica, P.

AU - Challis, C.

AU - Peeters, A.G.

AU - Strintzi, D.

AU - Tala, T.

AU - Tsalas, M.

AU - deVries, P.C.

AU - Baiocchi, B.

AU - Baruzzo, M.

AU - Bizarro, J.

AU - Buratti, P.

AU - Citrin, J.

AU - Colyer, G.

AU - Crisanti, F.

AU - Garbet, X.

AU - Giroud, C.

AU - Hawkes, N.

AU - Hobirk, J.

AU - Imbeaux, F.

AU - Joffrin, E.

AU - Johnson, T.

AU - Lerche, E.

AU - Mailloux, J.

AU - Naulin, Volker

AU - Salmi, A.

AU - Sozzi, C.

AU - Staebler, G.

AU - Van Eester, D.

AU - Versloot, T.

AU - Weiland, J.

PY - 2011

Y1 - 2011

N2 - New transport experiments on JET indicate that ion stiffness mitigation in the core of a rotating plasma, as described by Mantica et al. Phys. Rev. Lett. 102 175002 (2009)] results from the combined effect of high rotational shear and low magnetic shear. The observations have important implications for the understanding of improved ion core confinement in advanced tokamak scenarios. Simulations using quasilinear fluid and gyrofluid models show features of stiffness mitigation, while nonlinear gyrokinetic simulations do not. The JET experiments indicate that advanced tokamak scenarios in future devices will require sufficient rotational shear and the capability of q profile manipulation. © 2011 American Physical Society

AB - New transport experiments on JET indicate that ion stiffness mitigation in the core of a rotating plasma, as described by Mantica et al. Phys. Rev. Lett. 102 175002 (2009)] results from the combined effect of high rotational shear and low magnetic shear. The observations have important implications for the understanding of improved ion core confinement in advanced tokamak scenarios. Simulations using quasilinear fluid and gyrofluid models show features of stiffness mitigation, while nonlinear gyrokinetic simulations do not. The JET experiments indicate that advanced tokamak scenarios in future devices will require sufficient rotational shear and the capability of q profile manipulation. © 2011 American Physical Society

KW - Fusion energy

KW - Fusionsenergiforskning

KW - Fusionsenergi

U2 - 10.1103/PhysRevLett.107.135004

DO - 10.1103/PhysRevLett.107.135004

M3 - Journal article

VL - 107

SP - 135004

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

ER -

A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear

Abstract

Bibliographical note

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