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A key to improved ion core confinement in the JET tokamak : ion stiffness mitigation due to combined plasma rotation and low magnetic Shear
- Source :
- Physical Review Letters, 107(13):135004. American Physical Society, Physical review letters, info:cnr-pdr/source/autori:Mantica, P [ 1 ] ; Angioni, C [ 2 ] ; Challis, C [ 3 ] ; Colyer, G [ 3 ] ; Frassinetti, L [ 4 ] ; Hawkes, N [ 3 ] ; Johnson, T [ 4 ] ; Tsalas, M [ 5 ] ; deVries, PC [ 6 ] ; Weiland, J [ 7,8 ] ; Baiocchi, B [ 1,9 ] ; Beurskens, MNA [ 3 ] ; Figueiredo, ACA [ 10 ] ; Giroud, C [ 3 ] ; Hobirk, J [ 2 ] ; Joffrin, E [ 11 ] ; Lerche, E [ 12 ] ; Naulin, V [ 13 ] ; Peeters, AG [ 14 ] ; Salmi, A [ 15 ] ; Sozzi, C [ 1 ] ; Strintzi, D [ 5 ] ; Staebler, G [ 16 ] ; Tala, T [ 17 ] ; Van Eester, D [ 12 ] ; Versloot, T [ 6 ]/titolo:A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear/doi:10.1103%2FPhysRevLett.107.135004/rivista:Physical review letters (Print)/anno:2011/pagina_da:135004/pagina_a:/intervallo_pagine:135004/volume:107, Physical Review Letters, 107, 135004, 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, 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, Mantica, P, Angioni, C, Challis, C, Colyer, G, Frassinetti, L, Hawkes, N, Johnson, T, Tsalas, M, Devries, P C, Weiland, J, Baiocchi, B, Beurskens, M, Figueiredo, A, Giroud, C, Hobirk, J, Joffrin, E, Lerche, E, Naulin, V, Peeters, A G, Salmi, A, Sozzi, C, Strintzi, D, Staebler, G, Tala, T, Van Eester, D & Versloot, T 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, 135004 . https://doi.org/10.1103/PhysRevLett.107.135004, ResearcherID
- Publication Year :
- 2011
-
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
- Subjects :
- Physics
Tokamak
General Physics and Astronomy
Magnetic confinement fusion
Stiffness
Plasma
Mechanics
turbulent transport
ion heat transport
turbulence stabilisation
Fusion power
Fusionsenergiforskning
law.invention
Ion
Nonlinear system
Fusion energy
Fusionsenergi
Shear (geology)
law
Physics::Plasma Physics
medicine
Atomic physics
medicine.symptom
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, 107(13):135004. American Physical Society, Physical review letters, info:cnr-pdr/source/autori:Mantica, P [ 1 ] ; Angioni, C [ 2 ] ; Challis, C [ 3 ] ; Colyer, G [ 3 ] ; Frassinetti, L [ 4 ] ; Hawkes, N [ 3 ] ; Johnson, T [ 4 ] ; Tsalas, M [ 5 ] ; deVries, PC [ 6 ] ; Weiland, J [ 7,8 ] ; Baiocchi, B [ 1,9 ] ; Beurskens, MNA [ 3 ] ; Figueiredo, ACA [ 10 ] ; Giroud, C [ 3 ] ; Hobirk, J [ 2 ] ; Joffrin, E [ 11 ] ; Lerche, E [ 12 ] ; Naulin, V [ 13 ] ; Peeters, AG [ 14 ] ; Salmi, A [ 15 ] ; Sozzi, C [ 1 ] ; Strintzi, D [ 5 ] ; Staebler, G [ 16 ] ; Tala, T [ 17 ] ; Van Eester, D [ 12 ] ; Versloot, T [ 6 ]/titolo:A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear/doi:10.1103%2FPhysRevLett.107.135004/rivista:Physical review letters (Print)/anno:2011/pagina_da:135004/pagina_a:/intervallo_pagine:135004/volume:107, Physical Review Letters, 107, 135004, 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, 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, Mantica, P, Angioni, C, Challis, C, Colyer, G, Frassinetti, L, Hawkes, N, Johnson, T, Tsalas, M, Devries, P C, Weiland, J, Baiocchi, B, Beurskens, M, Figueiredo, A, Giroud, C, Hobirk, J, Joffrin, E, Lerche, E, Naulin, V, Peeters, A G, Salmi, A, Sozzi, C, Strintzi, D, Staebler, G, Tala, T, Van Eester, D & Versloot, T 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, 135004 . https://doi.org/10.1103/PhysRevLett.107.135004, ResearcherID
- Accession number :
- edsair.doi.dedup.....12c0f458b04b4cfab11c90c63a7eb5be
- Full Text :
- https://doi.org/10.1103/PhysRevLett.107.135004