Turbulence during ergodic divertor experiments in Tore Supra

J. Payan; X. Garbet; J. H. Chatenet; F. Clairet; C. De Michelis; P. Devynck; P. Ghendrih; C. Gil; A. Grosman; R. Guirlet; W. Hess; J. Lasalle; C. Laviron; H. Paume; A. Truc; P. Hennequin; F. Gervais; A. Quemeneur

doi:10.1088/0029-5515/35/11/I03

Turbulence during ergodic divertor experiments in Tore Supra

J. Payan, X. Garbet, J. H. Chatenet, F. Clairet, C. De Michelis, P. Devynck, P. Ghendrih, C. Gil, A. Grosman, R. Guirlet, W. Hess, J. Lasalle, C. Laviron, H. Paume, A. Truc, P. Hennequin, F. Gervais, A. Quemeneur

CEA/UVSQ/CNRS

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Abstract

The level of density fluctuations is shown to decrease during ergodic divertor operation in Tore Supra. This decrease of the turbulence is correlated with the onset of a temperature pedestal and a local improvement of the confinement. This pedestal is located close to the electric shear layer, i.e. within a narrow region between the plasma core and the ergodic layer. The onset of such a pedestal explains why the central electron temperature is not changed when the ergodic divertor is switched on, in spite of an ergodic zone where the temperature is low.

Original language	English
Article number	I03
Pages (from-to)	1357-1367
Number of pages	11
Journal	Nuclear Fusion
Volume	35
Issue number	11
DOIs	https://doi.org/10.1088/0029-5515/35/11/I03
Publication status	Published - 1 Dec 1995

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Payan, J., Garbet, X., Chatenet, J. H., Clairet, F., De Michelis, C., Devynck, P., Ghendrih, P., Gil, C., Grosman, A., Guirlet, R., Hess, W., Lasalle, J., Laviron, C., Paume, H., Truc, A., Hennequin, P., Gervais, F., & Quemeneur, A. (1995). Turbulence during ergodic divertor experiments in Tore Supra. Nuclear Fusion, 35(11), 1357-1367. Article I03. https://doi.org/10.1088/0029-5515/35/11/I03

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title = "Turbulence during ergodic divertor experiments in Tore Supra",

abstract = "The level of density fluctuations is shown to decrease during ergodic divertor operation in Tore Supra. This decrease of the turbulence is correlated with the onset of a temperature pedestal and a local improvement of the confinement. This pedestal is located close to the electric shear layer, i.e. within a narrow region between the plasma core and the ergodic layer. The onset of such a pedestal explains why the central electron temperature is not changed when the ergodic divertor is switched on, in spite of an ergodic zone where the temperature is low.",

author = "J. Payan and X. Garbet and Chatenet, \{J. H.\} and F. Clairet and \{De Michelis\}, C. and P. Devynck and P. Ghendrih and C. Gil and A. Grosman and R. Guirlet and W. Hess and J. Lasalle and C. Laviron and H. Paume and A. Truc and P. Hennequin and F. Gervais and A. Quemeneur",

year = "1995",

month = dec,

day = "1",

doi = "10.1088/0029-5515/35/11/I03",

language = "English",

volume = "35",

pages = "1357--1367",

journal = "Nuclear Fusion",

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Payan, J, Garbet, X, Chatenet, JH, Clairet, F, De Michelis, C, Devynck, P, Ghendrih, P, Gil, C, Grosman, A, Guirlet, R, Hess, W, Lasalle, J, Laviron, C, Paume, H, Truc, A, Hennequin, P, Gervais, F & Quemeneur, A 1995, 'Turbulence during ergodic divertor experiments in Tore Supra', Nuclear Fusion, vol. 35, no. 11, I03, pp. 1357-1367. https://doi.org/10.1088/0029-5515/35/11/I03

TY - JOUR

T1 - Turbulence during ergodic divertor experiments in Tore Supra

AU - Payan, J.

AU - Garbet, X.

AU - Chatenet, J. H.

AU - Clairet, F.

AU - De Michelis, C.

AU - Devynck, P.

AU - Ghendrih, P.

AU - Gil, C.

AU - Grosman, A.

AU - Guirlet, R.

AU - Hess, W.

AU - Lasalle, J.

AU - Laviron, C.

AU - Paume, H.

AU - Truc, A.

AU - Hennequin, P.

AU - Gervais, F.

AU - Quemeneur, A.

PY - 1995/12/1

Y1 - 1995/12/1

N2 - The level of density fluctuations is shown to decrease during ergodic divertor operation in Tore Supra. This decrease of the turbulence is correlated with the onset of a temperature pedestal and a local improvement of the confinement. This pedestal is located close to the electric shear layer, i.e. within a narrow region between the plasma core and the ergodic layer. The onset of such a pedestal explains why the central electron temperature is not changed when the ergodic divertor is switched on, in spite of an ergodic zone where the temperature is low.

AB - The level of density fluctuations is shown to decrease during ergodic divertor operation in Tore Supra. This decrease of the turbulence is correlated with the onset of a temperature pedestal and a local improvement of the confinement. This pedestal is located close to the electric shear layer, i.e. within a narrow region between the plasma core and the ergodic layer. The onset of such a pedestal explains why the central electron temperature is not changed when the ergodic divertor is switched on, in spite of an ergodic zone where the temperature is low.

U2 - 10.1088/0029-5515/35/11/I03

DO - 10.1088/0029-5515/35/11/I03

M3 - Article

AN - SCOPUS:0029396079

SN - 0029-5515

VL - 35

SP - 1357

EP - 1367

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 11

M1 - I03

ER -

Turbulence during ergodic divertor experiments in Tore Supra

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