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Effects of trapped alpha particles on internal kink modes in Tokamaks

Technical Report:

Abstract

The theory of linear interaction between internal kink modes and fusion produced high-energy alpha particles in a toroidal plasma is extended by including finite banana width corrections to the alpha dynamics. An important implication of the theory for the stability properties of kink modes is that the finite banana width effects increase the values of the poloidal alpha beta which are required to attain the stable domain of operation as well as to excite the high-frequency fishbone instability. Furthermore, these effects provide a reduction of the instability growth rate in both the low and high frequency unstable regimes. (au).
Publication Date:
Dec 31, 1991
Product Type:
Technical Report
Report Number:
CTH-IEFT-PP-1991-09
Reference Number:
SCA: 700340; PA: AIX-23:013648; SN: 92000639324
Resource Relation:
Other Information: PBD: [1991]
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; KINK INSTABILITY; ALPHA PARTICLES; BANANA REGIME; FISHBONE INSTABILITY; IONS; MATHEMATICS; TOKAMAK DEVICES; 700340; PLASMA WAVES, OSCILLATIONS, AND INSTABILITIES
OSTI ID:
10111692
Research Organizations:
Chalmers Univ. of Technology, Goeteborg (Sweden). Inst. for Electromagnetic Field Theory and Plasma Physics
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Other: ON: DE92614462; TRN: SE9100253013648
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
SWDN
Size:
19 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Helander, P, and Lisak, M. Effects of trapped alpha particles on internal kink modes in Tokamaks. Sweden: N. p., 1991. Web.
Helander, P, & Lisak, M. Effects of trapped alpha particles on internal kink modes in Tokamaks. Sweden.
Helander, P, and Lisak, M. 1991. "Effects of trapped alpha particles on internal kink modes in Tokamaks." Sweden.
@misc{etde_10111692,
title = {Effects of trapped alpha particles on internal kink modes in Tokamaks}
author = {Helander, P, and Lisak, M}
abstractNote = {The theory of linear interaction between internal kink modes and fusion produced high-energy alpha particles in a toroidal plasma is extended by including finite banana width corrections to the alpha dynamics. An important implication of the theory for the stability properties of kink modes is that the finite banana width effects increase the values of the poloidal alpha beta which are required to attain the stable domain of operation as well as to excite the high-frequency fishbone instability. Furthermore, these effects provide a reduction of the instability growth rate in both the low and high frequency unstable regimes. (au).}
place = {Sweden}
year = {1991}
month = {Dec}
}