A threshold for excitation of neoclassical tearing modes

N. N. Gorelenkov; R. V. Budny; Z. Chang; M. V. Gorelenkova; L. E. Zakharov

doi:10.1063/1.871614

A threshold for excitation of neoclassical tearing modes

N. N. Gorelenkov, R. V. Budny, Z. Chang, M. V. Gorelenkova, L. E. Zakharov

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

61 Scopus citations

Abstract

Stability criterion for neoclassical tearing modes is obtained from the drift kinetic equation. A finite amplitude of a magnetic island is required for mode excitation. The threshold is determined by the ratio of the transversal and the parallel transport near the island when the flattening of the pressure profile eliminates the bootstrap current. A number of supershots from the database of the Tokamak Fusion Test Reactor (TFTR) [D. J. Grove and D. M. Meade, Nucl. Fusion 25, 1167 (1985)] are compared with the theory. In cases where the modes were observed in experiment the stability criterion was violated.

Original language	English (US)
Pages (from-to)	3379-3385
Number of pages	7
Journal	Physics of Plasmas
Volume	3
Issue number	9
DOIs	https://doi.org/10.1063/1.871614
State	Published - 1996

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

Access to Document

10.1063/1.871614

Cite this

@article{794b381e45db4a86a628d9d45eeb1ef4,

title = "A threshold for excitation of neoclassical tearing modes",

abstract = "Stability criterion for neoclassical tearing modes is obtained from the drift kinetic equation. A finite amplitude of a magnetic island is required for mode excitation. The threshold is determined by the ratio of the transversal and the parallel transport near the island when the flattening of the pressure profile eliminates the bootstrap current. A number of supershots from the database of the Tokamak Fusion Test Reactor (TFTR) [D. J. Grove and D. M. Meade, Nucl. Fusion 25, 1167 (1985)] are compared with the theory. In cases where the modes were observed in experiment the stability criterion was violated.",

author = "Gorelenkov, \{N. N.\} and Budny, \{R. V.\} and Z. Chang and Gorelenkova, \{M. V.\} and Zakharov, \{L. E.\}",

year = "1996",

doi = "10.1063/1.871614",

language = "English (US)",

volume = "3",

pages = "3379--3385",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "9",

}

TY - JOUR

T1 - A threshold for excitation of neoclassical tearing modes

AU - Gorelenkov, N. N.

AU - Budny, R. V.

AU - Chang, Z.

AU - Gorelenkova, M. V.

AU - Zakharov, L. E.

PY - 1996

Y1 - 1996

N2 - Stability criterion for neoclassical tearing modes is obtained from the drift kinetic equation. A finite amplitude of a magnetic island is required for mode excitation. The threshold is determined by the ratio of the transversal and the parallel transport near the island when the flattening of the pressure profile eliminates the bootstrap current. A number of supershots from the database of the Tokamak Fusion Test Reactor (TFTR) [D. J. Grove and D. M. Meade, Nucl. Fusion 25, 1167 (1985)] are compared with the theory. In cases where the modes were observed in experiment the stability criterion was violated.

AB - Stability criterion for neoclassical tearing modes is obtained from the drift kinetic equation. A finite amplitude of a magnetic island is required for mode excitation. The threshold is determined by the ratio of the transversal and the parallel transport near the island when the flattening of the pressure profile eliminates the bootstrap current. A number of supershots from the database of the Tokamak Fusion Test Reactor (TFTR) [D. J. Grove and D. M. Meade, Nucl. Fusion 25, 1167 (1985)] are compared with the theory. In cases where the modes were observed in experiment the stability criterion was violated.

UR - https://www.scopus.com/pages/publications/0000599827

UR - https://www.scopus.com/inward/citedby.url?scp=0000599827&partnerID=8YFLogxK

U2 - 10.1063/1.871614

DO - 10.1063/1.871614

M3 - Article

AN - SCOPUS:0000599827

SN - 1070-664X

VL - 3

SP - 3379

EP - 3385

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 9

ER -

A threshold for excitation of neoclassical tearing modes

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this