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Title: Stabilization of the quasi-interchange mode in tokamaks by circulating energetic ions

Abstract

The influence of the circulating energetic ions on the quasi-interchange (QI) mode in tokamak plasmas with a wide shearless core and the central safety factor close to unity is considered. It is found that these ions tend to stabilize the QI mode in the case of co-injection and balanced injection, whereas the influence of counter-circulating ions is typically destabilizing because of finite-orbit-width effects. Specific examples relevant to tokamaks with large and small aspect ratio of the torus are considered.

Authors:
; ; ;  [1];  [2]
  1. Institute for Nuclear Research, Prospect Nauky 47, Kyiv, 03680 (Ukraine)
  2. (United States)
Publication Date:
OSTI Identifier:
20960103
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 1; Other Information: DOI: 10.1063/1.2434791; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ASPECT RATIO; HEATING; ION BEAMS; PLASMA; PLASMA BEAM INJECTION; PLASMA CONFINEMENT; PLASMA INSTABILITY; SAFETY; STABILIZATION; TAIL IONS; TOKAMAK DEVICES

Citation Formats

Kolesnichenko, Ya. I., Lutsenko, V. V., Marchenko, V. S., White, R. B., and Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey, 08543. Stabilization of the quasi-interchange mode in tokamaks by circulating energetic ions. United States: N. p., 2007. Web. doi:10.1063/1.2434791.
Kolesnichenko, Ya. I., Lutsenko, V. V., Marchenko, V. S., White, R. B., & Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey, 08543. Stabilization of the quasi-interchange mode in tokamaks by circulating energetic ions. United States. doi:10.1063/1.2434791.
Kolesnichenko, Ya. I., Lutsenko, V. V., Marchenko, V. S., White, R. B., and Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey, 08543. Mon . "Stabilization of the quasi-interchange mode in tokamaks by circulating energetic ions". United States. doi:10.1063/1.2434791.
@article{osti_20960103,
title = {Stabilization of the quasi-interchange mode in tokamaks by circulating energetic ions},
author = {Kolesnichenko, Ya. I. and Lutsenko, V. V. and Marchenko, V. S. and White, R. B. and Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey, 08543},
abstractNote = {The influence of the circulating energetic ions on the quasi-interchange (QI) mode in tokamak plasmas with a wide shearless core and the central safety factor close to unity is considered. It is found that these ions tend to stabilize the QI mode in the case of co-injection and balanced injection, whereas the influence of counter-circulating ions is typically destabilizing because of finite-orbit-width effects. Specific examples relevant to tokamaks with large and small aspect ratio of the torus are considered.},
doi = {10.1063/1.2434791},
journal = {Physics of Plasmas},
number = 1,
volume = 14,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}