Published February 2015 | Version v1
Journal article Metadata-only

Influence of energetic ions on tearing modes in a reversed field pinch

Creators

  • 1. CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei 230026 (China)
  • 2. Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095-7099 (United States)
  • 3. University of Wisconsin, Madison, WI 53706 (United States)

Description

Tearing mode stability analysis in the presence of circulating energetic ions (CEI) is studied in the reversed field pinch (RFP) magnetic configuration. In contrast to the minimal effect of precessional drift of CEI on tearing modes in tokamaks, the effect of precessional drift of CEI on tearing modes is important in the RFP. It is found that the effects of CEI on tearing modes in RFP depend on their toroidal circulating direction, and have a strong relation to the pressure gradient of CEI. For co-CEI, tearing modes can be stabilized if the pressure gradient of energetic ions is sufficiently large, which is qualitatively consistent with experimental results in the Madison Symmetric Torus. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0741-3335/57/2/025021

Additional details

Identifiers

DOI
10.1088/0741-3335/57/2/025021;

Publishing Information

Journal Title
Plasma Physics and Controlled Fusion
Journal Volume
57
Journal Issue
2
Journal Page Range
[5 p.]
ISSN
0741-3335
CODEN
PPCFET

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46067939
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
MAGNETIC FIELD CONFIGURATIONS; MST DEVICE; PRESSURE GRADIENTS; REVERSE-FIELD PINCH; STABILITY; TAIL IONS; TEARING INSTABILITY; TOKAMAK DEVICES
Descriptors DEC
CHARGED PARTICLES; CLOSED PLASMA DEVICES; INSTABILITY; IONS; PINCH DEVICES; PINCH EFFECT; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; REVERSED-FIELD PINCH DEVICES; THERMONUCLEAR DEVICES; TOROIDAL PINCH DEVICES