Drift mode calculations for the Large Helical Device

G. Rewoldt; L. P. Ku; W. M. Tang; H. Sugama; N. Nakajima; K. Y. Watanabe; S. Murakami; H. Yamada; W. A. Cooper

doi:10.1063/1.1317521

Drift mode calculations for the Large Helical Device

G. Rewoldt, L. P. Ku, W. M. Tang, H. Sugama, N. Nakajima, K. Y. Watanabe, S. Murakami, H. Yamada, W. A. Cooper

PPPL Computational Science

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15 Scopus citations

Abstract

A fully kinetic assessment of the stability properties of toroidal drift modes has been obtained for a case for the Large Helical Device [A. Iiyoshi et al., Nucl. Fusion 39, 1245 (1999)]. This calculation retains the important effects in the linearized gyrokinetic equation, using the lowest-order "ballooning representation" for high toroidal mode number instabilities in the electrostatic limit. Results for toroidal drift waves destabilized by trapped particle dynamics and ion temperature gradients are presented, using three-dimensional magnetohydrodynamic equilibria reconstructed from experimental measurements. The effects of helically trapped particles and helical curvature are investigated.

Original language	English (US)
Pages (from-to)	4942-4947
Number of pages	6
Journal	Physics of Plasmas
Volume	7
Issue number	12
DOIs	https://doi.org/10.1063/1.1317521
State	Published - Dec 2000

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.1317521

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title = "Drift mode calculations for the Large Helical Device",

abstract = "A fully kinetic assessment of the stability properties of toroidal drift modes has been obtained for a case for the Large Helical Device [A. Iiyoshi et al., Nucl. Fusion 39, 1245 (1999)]. This calculation retains the important effects in the linearized gyrokinetic equation, using the lowest-order {"}ballooning representation{"} for high toroidal mode number instabilities in the electrostatic limit. Results for toroidal drift waves destabilized by trapped particle dynamics and ion temperature gradients are presented, using three-dimensional magnetohydrodynamic equilibria reconstructed from experimental measurements. The effects of helically trapped particles and helical curvature are investigated.",

author = "G. Rewoldt and Ku, \{L. P.\} and Tang, \{W. M.\} and H. Sugama and N. Nakajima and Watanabe, \{K. Y.\} and S. Murakami and H. Yamada and Cooper, \{W. A.\}",

year = "2000",

month = dec,

doi = "10.1063/1.1317521",

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TY - JOUR

T1 - Drift mode calculations for the Large Helical Device

AU - Rewoldt, G.

AU - Ku, L. P.

AU - Tang, W. M.

AU - Sugama, H.

AU - Nakajima, N.

AU - Watanabe, K. Y.

AU - Murakami, S.

AU - Yamada, H.

AU - Cooper, W. A.

PY - 2000/12

Y1 - 2000/12

N2 - A fully kinetic assessment of the stability properties of toroidal drift modes has been obtained for a case for the Large Helical Device [A. Iiyoshi et al., Nucl. Fusion 39, 1245 (1999)]. This calculation retains the important effects in the linearized gyrokinetic equation, using the lowest-order "ballooning representation" for high toroidal mode number instabilities in the electrostatic limit. Results for toroidal drift waves destabilized by trapped particle dynamics and ion temperature gradients are presented, using three-dimensional magnetohydrodynamic equilibria reconstructed from experimental measurements. The effects of helically trapped particles and helical curvature are investigated.

AB - A fully kinetic assessment of the stability properties of toroidal drift modes has been obtained for a case for the Large Helical Device [A. Iiyoshi et al., Nucl. Fusion 39, 1245 (1999)]. This calculation retains the important effects in the linearized gyrokinetic equation, using the lowest-order "ballooning representation" for high toroidal mode number instabilities in the electrostatic limit. Results for toroidal drift waves destabilized by trapped particle dynamics and ion temperature gradients are presented, using three-dimensional magnetohydrodynamic equilibria reconstructed from experimental measurements. The effects of helically trapped particles and helical curvature are investigated.

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DO - 10.1063/1.1317521

M3 - Article

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VL - 7

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EP - 4947

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 12

ER -

Drift mode calculations for the Large Helical Device

Abstract

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