Suppression of the tearing mode by energetic ions

Chris C. Hegna; A. Bhattacharjee

doi:10.1103/PhysRevLett.63.2056

Suppression of the tearing mode by energetic ions

Chris C. Hegna, A. Bhattacharjee

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

34 Scopus citations

Abstract

The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.

Original language	English (US)
Pages (from-to)	2056-2059
Number of pages	4
Journal	Physical review letters
Volume	63
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.63.2056
State	Published - 1989
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.63.2056

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title = "Suppression of the tearing mode by energetic ions",

abstract = "The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.",

author = "Hegna, \{Chris C.\} and A. Bhattacharjee",

year = "1989",

doi = "10.1103/PhysRevLett.63.2056",

language = "English (US)",

volume = "63",

pages = "2056--2059",

journal = "Physical review letters",

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publisher = "American Physical Society",

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T1 - Suppression of the tearing mode by energetic ions

AU - Hegna, Chris C.

AU - Bhattacharjee, A.

PY - 1989

Y1 - 1989

N2 - The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.

AB - The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.

UR - https://www.scopus.com/pages/publications/5844346616

UR - https://www.scopus.com/inward/citedby.url?scp=5844346616&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.63.2056

DO - 10.1103/PhysRevLett.63.2056

M3 - Article

C2 - 10040751

AN - SCOPUS:5844346616

SN - 0031-9007

VL - 63

SP - 2056

EP - 2059

JO - Physical review letters

JF - Physical review letters

IS - 19

ER -

Suppression of the tearing mode by energetic ions

Abstract

All Science Journal Classification (ASJC) codes

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