Confinement transitions with radiation cooling in TEXTOR-94

J. Ongena; A. M. Messiaen; U. Samm; B. Unterberg; K. H. Finken; P. E. Vandenplas; G. Van Oost; G. Van Wassenhove; J. Winter; G. Bonheure; P. Dumortier; F. Durodie; H. Euringer; G. Fuchs; F. Hoenen; R. Koch; L. Könen; H. R. Koslowski; A. Krämer-Flecken; J. Rapp; N. Schoon; G. Telesca; R. Uhlemann; M. Vervier; G. Waidmann; R. R. Weynants

doi:10.1088/0741-3335/38/3/004

Confinement transitions with radiation cooling in TEXTOR-94

J. Ongena, A. M. Messiaen, U. Samm, B. Unterberg, K. H. Finken, P. E. Vandenplas, G. Van Oost, G. Van Wassenhove, J. Winter, G. Bonheure, P. Dumortier, F. Durodie, H. Euringer, G. Fuchs, F. Hoenen, R. Koch, L. Könen, H. R. Koslowski, A. Krämer-Flecken, J. RappN. Schoon, G. Telesca, R. Uhlemann, M. Vervier, G. Waidmann, R. R. Weynants

Laboratory for Plasma Physics

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Résumé

New experiments performed at high power with radiation cooling on TEXTOR-94, upgraded for long pulses, have shown the following. (i) Improved confinement conditions at high density (for which the plasma is mainly thermal) lasting for several seconds up to the present maximum flat top time of the upgraded machine with a low and stationary central impurity content. Note that the radiation occurs near the plasma edge, mainly inside the last closed magnetic flux surface. (ii) The existence of confinement transitions during the radiatively cooled phase of the discharge: the already observed transitions from higher to lower confinement regimes have been confirmed but, remarkably, transitions from lower to higher confinement are now also present, leading to an improvement of the confinement time of up to a factor of three.

langue originale	Anglais
Pages (de - à)	279-288
Nombre de pages	10
journal	Plasma Physics and Controlled Fusion
Volume	38
Numéro de publication	3
Les DOIs	https://doi.org/10.1088/0741-3335/38/3/004
état	Publié - 1996

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Ongena, J., Messiaen, A. M., Samm, U., Unterberg, B., Finken, K. H., Vandenplas, P. E., Van Oost, G., Van Wassenhove, G., Winter, J., Bonheure, G., Dumortier, P., Durodie, F., Euringer, H., Fuchs, G., Hoenen, F., Koch, R., Könen, L., Koslowski, H. R., Krämer-Flecken, A., ... Weynants, R. R. (1996). Confinement transitions with radiation cooling in TEXTOR-94. Plasma Physics and Controlled Fusion, 38(3), 279-288. https://doi.org/10.1088/0741-3335/38/3/004

@article{397f26aab0cc43419965936467207a53,

title = "Confinement transitions with radiation cooling in TEXTOR-94",

abstract = "New experiments performed at high power with radiation cooling on TEXTOR-94, upgraded for long pulses, have shown the following. (i) Improved confinement conditions at high density (for which the plasma is mainly thermal) lasting for several seconds up to the present maximum flat top time of the upgraded machine with a low and stationary central impurity content. Note that the radiation occurs near the plasma edge, mainly inside the last closed magnetic flux surface. (ii) The existence of confinement transitions during the radiatively cooled phase of the discharge: the already observed transitions from higher to lower confinement regimes have been confirmed but, remarkably, transitions from lower to higher confinement are now also present, leading to an improvement of the confinement time of up to a factor of three.",

author = "J. Ongena and Messiaen, {A. M.} and U. Samm and B. Unterberg and Finken, {K. H.} and Vandenplas, {P. E.} and {Van Oost}, G. and {Van Wassenhove}, G. and J. Winter and G. Bonheure and P. Dumortier and F. Durodie and H. Euringer and G. Fuchs and F. Hoenen and R. Koch and L. K{\"o}nen and Koslowski, {H. R.} and A. Kr{\"a}mer-Flecken and J. Rapp and N. Schoon and G. Telesca and R. Uhlemann and M. Vervier and G. Waidmann and Weynants, {R. R.}",

year = "1996",

doi = "10.1088/0741-3335/38/3/004",

language = "English",

volume = "38",

pages = "279--288",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

number = "3",

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Ongena, J, Messiaen, AM, Samm, U, Unterberg, B, Finken, KH, Vandenplas, PE, Van Oost, G, Van Wassenhove, G, Winter, J, Bonheure, G, Dumortier, P , Durodie, F, Euringer, H, Fuchs, G, Hoenen, F, Koch, R, Könen, L, Koslowski, HR, Krämer-Flecken, A, Rapp, J, Schoon, N, Telesca, G, Uhlemann, R, Vervier, M, Waidmann, G & Weynants, RR 1996, 'Confinement transitions with radiation cooling in TEXTOR-94', Plasma Physics and Controlled Fusion, VOL. 38, Numéro 3, p. 279-288. https://doi.org/10.1088/0741-3335/38/3/004

TY - JOUR

T1 - Confinement transitions with radiation cooling in TEXTOR-94

AU - Ongena, J.

AU - Messiaen, A. M.

AU - Samm, U.

AU - Unterberg, B.

AU - Finken, K. H.

AU - Vandenplas, P. E.

AU - Van Oost, G.

AU - Van Wassenhove, G.

AU - Winter, J.

AU - Bonheure, G.

AU - Dumortier, P.

AU - Durodie, F.

AU - Euringer, H.

AU - Fuchs, G.

AU - Hoenen, F.

AU - Koch, R.

AU - Könen, L.

AU - Koslowski, H. R.

AU - Krämer-Flecken, A.

AU - Rapp, J.

AU - Schoon, N.

AU - Telesca, G.

AU - Uhlemann, R.

AU - Vervier, M.

AU - Waidmann, G.

AU - Weynants, R. R.

PY - 1996

Y1 - 1996

N2 - New experiments performed at high power with radiation cooling on TEXTOR-94, upgraded for long pulses, have shown the following. (i) Improved confinement conditions at high density (for which the plasma is mainly thermal) lasting for several seconds up to the present maximum flat top time of the upgraded machine with a low and stationary central impurity content. Note that the radiation occurs near the plasma edge, mainly inside the last closed magnetic flux surface. (ii) The existence of confinement transitions during the radiatively cooled phase of the discharge: the already observed transitions from higher to lower confinement regimes have been confirmed but, remarkably, transitions from lower to higher confinement are now also present, leading to an improvement of the confinement time of up to a factor of three.

AB - New experiments performed at high power with radiation cooling on TEXTOR-94, upgraded for long pulses, have shown the following. (i) Improved confinement conditions at high density (for which the plasma is mainly thermal) lasting for several seconds up to the present maximum flat top time of the upgraded machine with a low and stationary central impurity content. Note that the radiation occurs near the plasma edge, mainly inside the last closed magnetic flux surface. (ii) The existence of confinement transitions during the radiatively cooled phase of the discharge: the already observed transitions from higher to lower confinement regimes have been confirmed but, remarkably, transitions from lower to higher confinement are now also present, leading to an improvement of the confinement time of up to a factor of three.

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DO - 10.1088/0741-3335/38/3/004

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SN - 0741-3335

VL - 38

SP - 279

EP - 288

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 3

ER -

Confinement transitions with radiation cooling in TEXTOR-94

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