Sign on

SAO/NASA ADS Physics Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· References in the article
· Citations to the Article (16) (Citation History)
· Refereed Citations to the Article
· Reads History
·
· Translate This Page
Title:
Equilibrium and stability studies of oblate field-reversed configurations in the Magnetic Reconnection Experiment
Authors:
Gerhardt, S. P.; Belova, E.; Inomoto, M.; Yamada, M.; Ji, H.; Ren, Y.; Kuritsyn, A.
Affiliation:
AA(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543), AB(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543), AC(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543), AD(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543), AE(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543), AF(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543), AG(Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543)
Publication:
Physics of Plasmas, Volume 13, Issue 11, article id. 112508 18 pp. (2006). (PhPl Homepage)
Publication Date:
11/2006
Origin:
AIP
PACS Keywords:
Field-reversed configurations rotamaks astrons ion rings magnetized target fusion and cusps, Theta pinch, Magnetic reconnection, Macroinstabilities, Numerical simulation, solution of equations
Abstract Copyright:
2006: American Institute of Physics
DOI:
10.1063/1.2360912
Bibliographic Code:
2006PhPl...13k2508G

Abstract

The equilibrium and stability of oblate field-reversed configurations (FRCs) have been studied in the Magnetic Reconnection Experiment [M. Yamada et al., Phys. Plasmas 4, 1936 (1997)]. In the absence of a passive stabilization, tilt and shift instabilities often become unstable, with the tilt in particular limiting the plasma lifetime. The tilt instability can be mitigated by either including a passive stabilizing conductor, or by forming very oblate plasmas. Large perturbations (n =2 and 3) may still remain after passive stabilization is applied. These perturbations have the characteristics of co-interchange modes, which have never been observed, and can lead to the early termination of the plasma. The co-interchange modes can be minimized through the formation of plasmas with a very oblate shape, leading to the maximum FRC lifetime. A code has been developed to calculate equilibria for these plasmas. A rigid-body model explains the improved stability of oblate plasmas to n =1 tilt modes. Numerical calculations indicate improved stability to n ⩾2 co-interchange modes for the very oblate plasma shapes.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints