Thermodynamic properties and Hall currents in MPD accelerators
Abstract
The thermodynamic properties and Hall currents in the arc region of MPD accelerators are investigated analytically and experimentally. Expressions for the current density components in the accelerator are developed from a generalized Ohm's law. Simplifying assumptions applicable to a large class of accelerators are made. A nonequilibrium ionization equation is used with the simplified component equations to calculate the Hall current density and the total Hall current in the accelerator arc region as functions of applied current and assumed electron temperature and density profiles. Spectral intensities are measured and used to calculate electron temperature and density profiles in an experimental accelerator. For fixed operating conditions, the temperature is uniform across the arc region, but the electron density is a strong function of radial position.
 Publication:

Unknown
 Pub Date:
 December 1975
 Bibcode:
 1975tphc.rept.....C
 Keywords:

 Hall Effect;
 Particle Accelerators;
 Thermodynamic Properties;
 Electron Density (Concentration);
 Field Strength;
 Ionization;
 Magnetic Fields;
 Plasma Physics