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Stability analysis of external kink mode for ITER L-mode profile plasmas

Technical Report:

Abstract

A stability analysis is made for the n=1 external kink mode (n: toroidal mode number) to the predicted ITER L-mode profiles. The beta limit (g{sub T}) for this kink mode is sufficiently higher than the design value of g{sub T}=2.0-2.4 for the L-mode profiles in case of the assumed current profile even with a finite but small edge current. However, in case of q{sub 0} less than unity (q{sub 0}: safety factor on the magnetic axis) the beta limit for the kink mode is significantly reduced: g{sub T} is 1.0 for q{sub 0}=0.8 without a conducting wall. A conducting wall located near the mid-plane has a stronger stabilizing effect than a wall located near the null point. (author).
Authors:
Tokuda, Shinji; Ozeki, Takahisa [1] 
  1. Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment
Publication Date:
Sep 01, 1994
Product Type:
Technical Report
Report Number:
JAERI-Research-94-013
Reference Number:
SCA: 700310; PA: JPN-94:012115; EDB-95:026201; SN: 95001319923
Resource Relation:
Other Information: PBD: Sep 1994
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ITER TOKAMAK; KINK INSTABILITY; HOT PLASMA; H-MODE PLASMA CONFINEMENT; PLASMA RADIAL PROFILES; BETA RATIO; MAGNETIC SURFACES; NUMERICAL SOLUTION; 700310; PLASMA CONFINEMENT
OSTI ID:
10109242
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE95737207; TRN: JP9412115
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
21 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Tokuda, Shinji, and Ozeki, Takahisa. Stability analysis of external kink mode for ITER L-mode profile plasmas. Japan: N. p., 1994. Web.
Tokuda, Shinji, & Ozeki, Takahisa. Stability analysis of external kink mode for ITER L-mode profile plasmas. Japan.
Tokuda, Shinji, and Ozeki, Takahisa. 1994. "Stability analysis of external kink mode for ITER L-mode profile plasmas." Japan.
@misc{etde_10109242,
title = {Stability analysis of external kink mode for ITER L-mode profile plasmas}
author = {Tokuda, Shinji, and Ozeki, Takahisa}
abstractNote = {A stability analysis is made for the n=1 external kink mode (n: toroidal mode number) to the predicted ITER L-mode profiles. The beta limit (g{sub T}) for this kink mode is sufficiently higher than the design value of g{sub T}=2.0-2.4 for the L-mode profiles in case of the assumed current profile even with a finite but small edge current. However, in case of q{sub 0} less than unity (q{sub 0}: safety factor on the magnetic axis) the beta limit for the kink mode is significantly reduced: g{sub T} is 1.0 for q{sub 0}=0.8 without a conducting wall. A conducting wall located near the mid-plane has a stronger stabilizing effect than a wall located near the null point. (author).}
place = {Japan}
year = {1994}
month = {Sep}
}