Physics of transport in tokamaks

X. Garbet, P. Mantica, C. Angioni, E. Asp, Y. Baranov, C. Bourdelle, R. Budny, F. Crisanti, G. Cordey, L. Garzotti, N. Kirneva, D. Hogeweij, T. Hoang, F. Imbeaux, E. Joffrin, X. Litaudon, A. Manini, D.C. McDonald, H. Nordman, V. ParailA. Peeters, F. Ryter, C. Sozzi, M. Valovic, Tuomas Tala, A. Thyagaraja, I. Voitsekhovitch, J. Weiland, H. Weisen, A. Zabolotsky, JET-EFDA Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    127 Citations (Scopus)

    Abstract

    This paper is an overview of recent results relating to turbulent particle and heat transport, and to the triggering of internal transport barriers (ITBs). The dependence of the turbulent particle pinch velocity on plasma parameters has been clarified and compared with experiment. Magnetic shear and collisionality are found to play a central role. Analysis of heat transport has made progress along two directions: dimensionless scaling laws, which are found to agree with the prediction for electrostatic turbulence, and analysis of modulation experiments, which provide a stringent test of transport models. Finally the formation of ITBs has been addressed by analysing electron transport barriers. It is confirmed that negative magnetic shear, combined with the Shafranov shift, is a robust stabilizing mechanism. However, some well established features of internal barriers are not explained by theory.
    Original languageEnglish
    Pages (from-to)B557 - B574
    Number of pages18
    JournalPlasma Physics and Controlled Fusion
    Volume46
    Issue number12B
    DOIs
    Publication statusPublished - 2004
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Physics
    physics
    Scaling laws
    Electrostatics
    Turbulence
    Experiments
    Modulation
    shear
    Plasmas
    heat
    scaling laws
    turbulence
    electrostatics
    modulation
    Hot Temperature
    shift
    predictions
    electrons
    Electron Transport

    Keywords

    • JET
    • plasma
    • fusion energy
    • fusion reactors
    • tokamak
    • internal transport barriers
    • magnetic shear

    Cite this

    Garbet, X., Mantica, P., Angioni, C., Asp, E., Baranov, Y., Bourdelle, C., ... JET-EFDA Contributors (2004). Physics of transport in tokamaks. Plasma Physics and Controlled Fusion, 46(12B), B557 - B574. https://doi.org/10.1088/0741-3335/46/12B/045
    Garbet, X. ; Mantica, P. ; Angioni, C. ; Asp, E. ; Baranov, Y. ; Bourdelle, C. ; Budny, R. ; Crisanti, F. ; Cordey, G. ; Garzotti, L. ; Kirneva, N. ; Hogeweij, D. ; Hoang, T. ; Imbeaux, F. ; Joffrin, E. ; Litaudon, X. ; Manini, A. ; McDonald, D.C. ; Nordman, H. ; Parail, V. ; Peeters, A. ; Ryter, F. ; Sozzi, C. ; Valovic, M. ; Tala, Tuomas ; Thyagaraja, A. ; Voitsekhovitch, I. ; Weiland, J. ; Weisen, H. ; Zabolotsky, A. ; JET-EFDA Contributors. / Physics of transport in tokamaks. In: Plasma Physics and Controlled Fusion. 2004 ; Vol. 46, No. 12B. pp. B557 - B574.
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    abstract = "This paper is an overview of recent results relating to turbulent particle and heat transport, and to the triggering of internal transport barriers (ITBs). The dependence of the turbulent particle pinch velocity on plasma parameters has been clarified and compared with experiment. Magnetic shear and collisionality are found to play a central role. Analysis of heat transport has made progress along two directions: dimensionless scaling laws, which are found to agree with the prediction for electrostatic turbulence, and analysis of modulation experiments, which provide a stringent test of transport models. Finally the formation of ITBs has been addressed by analysing electron transport barriers. It is confirmed that negative magnetic shear, combined with the Shafranov shift, is a robust stabilizing mechanism. However, some well established features of internal barriers are not explained by theory.",
    keywords = "JET, plasma, fusion energy, fusion reactors, tokamak, internal transport barriers, magnetic shear",
    author = "X. Garbet and P. Mantica and C. Angioni and E. Asp and Y. Baranov and C. Bourdelle and R. Budny and F. Crisanti and G. Cordey and L. Garzotti and N. Kirneva and D. Hogeweij and T. Hoang and F. Imbeaux and E. Joffrin and X. Litaudon and A. Manini and D.C. McDonald and H. Nordman and V. Parail and A. Peeters and F. Ryter and C. Sozzi and M. Valovic and Tuomas Tala and A. Thyagaraja and I. Voitsekhovitch and J. Weiland and H. Weisen and A. Zabolotsky and {JET-EFDA Contributors}",
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    Garbet, X, Mantica, P, Angioni, C, Asp, E, Baranov, Y, Bourdelle, C, Budny, R, Crisanti, F, Cordey, G, Garzotti, L, Kirneva, N, Hogeweij, D, Hoang, T, Imbeaux, F, Joffrin, E, Litaudon, X, Manini, A, McDonald, DC, Nordman, H, Parail, V, Peeters, A, Ryter, F, Sozzi, C, Valovic, M, Tala, T, Thyagaraja, A, Voitsekhovitch, I, Weiland, J, Weisen, H, Zabolotsky, A & JET-EFDA Contributors 2004, 'Physics of transport in tokamaks', Plasma Physics and Controlled Fusion, vol. 46, no. 12B, pp. B557 - B574. https://doi.org/10.1088/0741-3335/46/12B/045

    Physics of transport in tokamaks. / Garbet, X.; Mantica, P.; Angioni, C.; Asp, E.; Baranov, Y.; Bourdelle, C.; Budny, R.; Crisanti, F.; Cordey, G.; Garzotti, L.; Kirneva, N.; Hogeweij, D.; Hoang, T.; Imbeaux, F.; Joffrin, E.; Litaudon, X.; Manini, A.; McDonald, D.C.; Nordman, H.; Parail, V.; Peeters, A.; Ryter, F.; Sozzi, C.; Valovic, M.; Tala, Tuomas; Thyagaraja, A.; Voitsekhovitch, I.; Weiland, J.; Weisen, H.; Zabolotsky, A.; JET-EFDA Contributors.

    In: Plasma Physics and Controlled Fusion, Vol. 46, No. 12B, 2004, p. B557 - B574.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Physics of transport in tokamaks

    AU - Garbet, X.

    AU - Mantica, P.

    AU - Angioni, C.

    AU - Asp, E.

    AU - Baranov, Y.

    AU - Bourdelle, C.

    AU - Budny, R.

    AU - Crisanti, F.

    AU - Cordey, G.

    AU - Garzotti, L.

    AU - Kirneva, N.

    AU - Hogeweij, D.

    AU - Hoang, T.

    AU - Imbeaux, F.

    AU - Joffrin, E.

    AU - Litaudon, X.

    AU - Manini, A.

    AU - McDonald, D.C.

    AU - Nordman, H.

    AU - Parail, V.

    AU - Peeters, A.

    AU - Ryter, F.

    AU - Sozzi, C.

    AU - Valovic, M.

    AU - Tala, Tuomas

    AU - Thyagaraja, A.

    AU - Voitsekhovitch, I.

    AU - Weiland, J.

    AU - Weisen, H.

    AU - Zabolotsky, A.

    AU - JET-EFDA Contributors, null

    PY - 2004

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    AB - This paper is an overview of recent results relating to turbulent particle and heat transport, and to the triggering of internal transport barriers (ITBs). The dependence of the turbulent particle pinch velocity on plasma parameters has been clarified and compared with experiment. Magnetic shear and collisionality are found to play a central role. Analysis of heat transport has made progress along two directions: dimensionless scaling laws, which are found to agree with the prediction for electrostatic turbulence, and analysis of modulation experiments, which provide a stringent test of transport models. Finally the formation of ITBs has been addressed by analysing electron transport barriers. It is confirmed that negative magnetic shear, combined with the Shafranov shift, is a robust stabilizing mechanism. However, some well established features of internal barriers are not explained by theory.

    KW - JET

    KW - plasma

    KW - fusion energy

    KW - fusion reactors

    KW - tokamak

    KW - internal transport barriers

    KW - magnetic shear

    U2 - 10.1088/0741-3335/46/12B/045

    DO - 10.1088/0741-3335/46/12B/045

    M3 - Article

    VL - 46

    SP - B557 - B574

    JO - Plasma Physics and Controlled Fusion

    JF - Plasma Physics and Controlled Fusion

    SN - 0741-3335

    IS - 12B

    ER -

    Garbet X, Mantica P, Angioni C, Asp E, Baranov Y, Bourdelle C et al. Physics of transport in tokamaks. Plasma Physics and Controlled Fusion. 2004;46(12B):B557 - B574. https://doi.org/10.1088/0741-3335/46/12B/045