Title :
Investigation of Magnetic Fields in 1-MA Wire Arrays and

-Pinches
Author :
Ivanov, Vladimir V. ; Sarkisov, Gennady S. ; Laca, Paul J. ; Sotnikov, Vladimir I. ; Kantsyrev, Victor L. ; Jones, Brent M. ; Coverdale, Christine A. ; LePell, P. David ; Deeney, Christopher ; Struve, Kenneth W. ; Astanovitskiy, A.L. ; Fedin, Dmitry A. ;
Author_Institution :
Nevada Terawatt Facility, Nevada Univ., Reno, NV
Abstract :
A Faraday rotation diagnostic was applied for the investigation of magnetic fields in plasma of 1-MA wire arrays and X-pinches. Laser-probing diagnostics at the Zebra generator include a four-channel polarointerferometer and a four-frame shadowgraphy. The Faraday rotation diagnostic consists of shadow and Faraday channels, shearing air-wedge interferometer, and an additional schlieren channel. The implosion dynamics of the wire arrays were studied. A current in the plasma column of Al low-wire number arrays was found by the Faraday rotation diagnostic. Optical diagnostics showed a turbulent plasma and bubblelike objects in the plasma column of Al wire arrays. The Faraday rotation diagnostic demonstrated a complicated structure of magnetic fields in X-pinch plasma
Keywords :
Faraday effect; Z pinch; aluminium; exploding wires; measurement by laser beam; plasma magnetohydrodynamics; plasma probes; plasma transport processes; plasma turbulence; schlieren systems; 1 MA; Al; Al low-wire number arrays; Faraday rotation diagnostic; X-pinch plasma; Zebra generator; bubblelike objects; four-channel polarointerferometer; four-frame shadowgraphy; laser-probing diagnostics; magnetic field structure; optical diagnostics; plasma column current; plasma turbulence; schlieren channel; shearing air-wedge interferometer; wire array implosion dynamics; Magnetic field measurement; Magnetic fields; Physics; Plasma applications; Plasma density; Plasma diagnostics; Plasma measurements; Plasma simulation; Plasma x-ray sources; Wire; Faraday effect; laser probing; plasma turbulence; wire-array;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2006.877693