Studies of the gasembedded Zpinch
Abstract
Numerical modeling and experimental investigations of the gasembedded Zpinch are reported. One dimensional MHD calculations, including ionization, are extended to include alphaparticle heating effects for very dense pinches. Heating from 10 to 50 keV is dominantly due to alpha heating and in consequence the pinch expands radially. Experimental studies of the gasembedded Zpinch were conducted using a relativistic electron beam to provide an initial ionized channel. Both pinch and expanding discharge channel modes are observed depending on pressure. The observed growth of a helical deformation driven by the kink instability is compared with a nonlinear theory. The theory is found to overestimate the observed helix radius by roughly a factor of 10.
 Publication:

Pulsed High Beta Plasmas
 Pub Date:
 1976
 Bibcode:
 1976phbp.proc..313H
 Keywords:

 Alpha Particles;
 Ionized Gases;
 Magnetohydrodynamic Stability;
 Plasma Heating;
 Plasma Pinch;
 Electron Beams;
 Mathematical Models;
 Modal Response;
 Nonlinear Equations;
 One Dimensional Flow;
 Plasma Control;
 Plasma Diagnostics;
 Pressure Effects;
 Relativistic Plasmas;
 Plasma Physics