Evidence of suppression of ITG-instability in the radiatively improved mode in TEXTOR-94

M. Z. Tokar; R. Jaspers; R. R. Weynants; H. R. Koslowski; A. Krämer-Flecken; A. M. Messiaen; J. Ongena; B. Unterberg

doi:10.1088/0741-3335/41/3/001

Evidence of suppression of ITG-instability in the radiatively improved mode in TEXTOR-94

M. Z. Tokar, R. Jaspers, R. R. Weynants, H. R. Koslowski, A. Krämer-Flecken, A. M. Messiaen, J. Ongena, B. Unterberg

Laboratory for Plasma Physics

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

Abstract

Characteristics of the toroidal ITG-instability are analyzed for conditions of the L-mode and the radiatively improved (RI) mode triggered in TEXTOR-94 by puffing of neon. Analysis is performed for experimentally measured profiles of the plasma parameters and densities of impurity species. It is shown that in the RI-mode the anomalous transport induced by this kind of instability is reduced significantly in a large part of the plasma volume. This is an important channel of the energy confinement improvement. The role of the radial electric field is envisaged.

Original language	English
Pages (from-to)	L9-L15
Journal	Plasma Physics and Controlled Fusion
Volume	41
Issue number	3
DOIs	https://doi.org/10.1088/0741-3335/41/3/001
Publication status	Published - Mar 1999

Access to Document

10.1088/0741-3335/41/3/001

Cite this

@article{00e1bc60e2944a5392d4993d941d0b0d,

title = "Evidence of suppression of ITG-instability in the radiatively improved mode in TEXTOR-94",

abstract = "Characteristics of the toroidal ITG-instability are analyzed for conditions of the L-mode and the radiatively improved (RI) mode triggered in TEXTOR-94 by puffing of neon. Analysis is performed for experimentally measured profiles of the plasma parameters and densities of impurity species. It is shown that in the RI-mode the anomalous transport induced by this kind of instability is reduced significantly in a large part of the plasma volume. This is an important channel of the energy confinement improvement. The role of the radial electric field is envisaged.",

author = "Tokar, {M. Z.} and R. Jaspers and Weynants, {R. R.} and Koslowski, {H. R.} and A. Kr{\"a}mer-Flecken and Messiaen, {A. M.} and J. Ongena and B. Unterberg",

year = "1999",

month = mar,

doi = "10.1088/0741-3335/41/3/001",

language = "English",

volume = "41",

pages = "L9--L15",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

number = "3",

}

TY - JOUR

T1 - Evidence of suppression of ITG-instability in the radiatively improved mode in TEXTOR-94

AU - Tokar, M. Z.

AU - Jaspers, R.

AU - Weynants, R. R.

AU - Koslowski, H. R.

AU - Krämer-Flecken, A.

AU - Messiaen, A. M.

AU - Ongena, J.

AU - Unterberg, B.

PY - 1999/3

Y1 - 1999/3

N2 - Characteristics of the toroidal ITG-instability are analyzed for conditions of the L-mode and the radiatively improved (RI) mode triggered in TEXTOR-94 by puffing of neon. Analysis is performed for experimentally measured profiles of the plasma parameters and densities of impurity species. It is shown that in the RI-mode the anomalous transport induced by this kind of instability is reduced significantly in a large part of the plasma volume. This is an important channel of the energy confinement improvement. The role of the radial electric field is envisaged.

AB - Characteristics of the toroidal ITG-instability are analyzed for conditions of the L-mode and the radiatively improved (RI) mode triggered in TEXTOR-94 by puffing of neon. Analysis is performed for experimentally measured profiles of the plasma parameters and densities of impurity species. It is shown that in the RI-mode the anomalous transport induced by this kind of instability is reduced significantly in a large part of the plasma volume. This is an important channel of the energy confinement improvement. The role of the radial electric field is envisaged.

UR - http://www.scopus.com/inward/record.url?scp=0032664447&partnerID=8YFLogxK

U2 - 10.1088/0741-3335/41/3/001

DO - 10.1088/0741-3335/41/3/001

M3 - Article

AN - SCOPUS:0032664447

SN - 0741-3335

VL - 41

SP - L9-L15

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 3

ER -

Evidence of suppression of ITG-instability in the radiatively improved mode in TEXTOR-94

Abstract

Access to Document

Other files and links

Fingerprint

Cite this