Micro-stability and transport modelling of internal transport barriers on JET

X. Garbet; Y. Baranov; G. Bateman; S. Benkadda; P. Beyer; R. Budny; F. Crisanti; B. Esposito; C. Figarella; C. Fourment; P. Ghendrih; F. Imbeaux; E. Joffrin; J. Kinsey; A. Kritz; X. Litaudon; P. Maget; P. Mantica; D. Moreau; Y. Sarazin; A. Pankin; V. Parail; A. Peeters; T. Tala; G. Tardini; A. Thyagaraja; I. Voitsekhovitc; J. Weiland; R. Wolf

doi:10.1088/0029-5515/43/9/323

Micro-stability and transport modelling of internal transport barriers on JET

X. Garbet
, Y. Baranov
, G. Bateman
, S. Benkadda
, P. Beyer
, R. Budny
, F. Crisanti
, B. Esposito
, C. Figarella
, C. Fourment
, P. Ghendrih
, F. Imbeaux
, E. Joffrin
, J. Kinsey
, A. Kritz
, X. Litaudon
, P. Maget
, P. Mantica
, D. Moreau
, Y. Sarazin

A. Pankin, V. Parail, A. Peeters, T. Tala, G. Tardini, A. Thyagaraja, I. Voitsekhovitc, J. Weiland, R. Wolf

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

29 Scopus citations

Abstract

The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.

Original language	English (US)
Pages (from-to)	975-981
Number of pages	7
Journal	Nuclear Fusion
Volume	43
Issue number	9
DOIs	https://doi.org/10.1088/0029-5515/43/9/323
State	Published - Sep 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1088/0029-5515/43/9/323

Cite this

Garbet, X., Baranov, Y., Bateman, G., Benkadda, S., Beyer, P., Budny, R., Crisanti, F., Esposito, B., Figarella, C., Fourment, C., Ghendrih, P., Imbeaux, F., Joffrin, E., Kinsey, J., Kritz, A., Litaudon, X., Maget, P., Mantica, P., Moreau, D., ... Wolf, R. (2003). Micro-stability and transport modelling of internal transport barriers on JET. Nuclear Fusion, 43(9), 975-981. https://doi.org/10.1088/0029-5515/43/9/323

@article{ff540cd33cb14e57811973072409d3f9,

title = "Micro-stability and transport modelling of internal transport barriers on JET",

abstract = "The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.",

author = "X. Garbet and Y. Baranov and G. Bateman and S. Benkadda and P. Beyer and R. Budny and F. Crisanti and B. Esposito and C. Figarella and C. Fourment and P. Ghendrih and F. Imbeaux and E. Joffrin and J. Kinsey and A. Kritz and X. Litaudon and P. Maget and P. Mantica and D. Moreau and Y. Sarazin and A. Pankin and V. Parail and A. Peeters and T. Tala and G. Tardini and A. Thyagaraja and I. Voitsekhovitc and J. Weiland and R. Wolf",

year = "2003",

month = sep,

doi = "10.1088/0029-5515/43/9/323",

language = "English (US)",

volume = "43",

pages = "975--981",

journal = "Nuclear Fusion",

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Garbet, X, Baranov, Y, Bateman, G, Benkadda, S, Beyer, P, Budny, R, Crisanti, F, Esposito, B, Figarella, C, Fourment, C, Ghendrih, P, Imbeaux, F, Joffrin, E, Kinsey, J, Kritz, A, Litaudon, X, Maget, P, Mantica, P, Moreau, D, Sarazin, Y, Pankin, A, Parail, V, Peeters, A, Tala, T, Tardini, G, Thyagaraja, A, Voitsekhovitc, I, Weiland, J & Wolf, R 2003, 'Micro-stability and transport modelling of internal transport barriers on JET', Nuclear Fusion, vol. 43, no. 9, pp. 975-981. https://doi.org/10.1088/0029-5515/43/9/323

TY - JOUR

T1 - Micro-stability and transport modelling of internal transport barriers on JET

AU - Garbet, X.

AU - Baranov, Y.

AU - Bateman, G.

AU - Benkadda, S.

AU - Beyer, P.

AU - Budny, R.

AU - Crisanti, F.

AU - Esposito, B.

AU - Figarella, C.

AU - Fourment, C.

AU - Ghendrih, P.

AU - Imbeaux, F.

AU - Joffrin, E.

AU - Kinsey, J.

AU - Kritz, A.

AU - Litaudon, X.

AU - Maget, P.

AU - Mantica, P.

AU - Moreau, D.

AU - Sarazin, Y.

AU - Pankin, A.

AU - Parail, V.

AU - Peeters, A.

AU - Tala, T.

AU - Tardini, G.

AU - Thyagaraja, A.

AU - Voitsekhovitc, I.

AU - Weiland, J.

AU - Wolf, R.

PY - 2003/9

Y1 - 2003/9

N2 - The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.

AB - The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.

UR - https://www.scopus.com/pages/publications/0141731349

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DO - 10.1088/0029-5515/43/9/323

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AN - SCOPUS:0141731349

SN - 0029-5515

VL - 43

SP - 975

EP - 981

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 9

ER -

Micro-stability and transport modelling of internal transport barriers on JET

Abstract

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