Dynamic process during axial magnetic compression of field-reversed configuration for equilibrium shape control

Citation
K. Kitano et al., Dynamic process during axial magnetic compression of field-reversed configuration for equilibrium shape control, PHYS PLASMA, 8(8), 2001, pp. 3630-3634
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF PLASMAS
ISSN journal
1070-664X → ACNP
Volume
8
Issue
8
Year of publication
2001
Pages
3630 - 3634
Database
ISI
SICI code
1070-664X(200108)8:8<3630:DPDAMC>2.0.ZU;2-R
Abstract
Adiabatic magnetic compression experiments on a field-reversed configuratio n (FRC) plasma are reported. The compression is performed on a long FRC hel d in a straight mirror field. The separatrix length of the FRC is limited b y the distance between the magnetic mirrors. The mirror distance is compres sed in time to 35% of the original one by the compression coil installed in side the chamber, and the separatrix length is shortened to 38%. The separa trix radius of the compressed FRC increases by 56% and the aspect ratio (se paratrix length/separatrix diameter) changes from 12.6 to 4.1. Magnetic pro bes with the compensation circuit are utilized to investigate the dynamic t ransition phase during the compression. The transition process is found fro m these measurements to be divided into three stages, where a new equilibri um state is achieved in the final stage. (C) 2001 American Institute of Phy sics.