EXPERIMENTAL AND ANALYTICAL INVESTIGATIONS OF CROSSED-FIELD PLASMA ACCELERATORS PART II. REPORT OF ALL ANALYTIC AND EXPERIMENTAL RESULTS (UNCLASSIFIED)

摘要

This final report of the theoretical and experimental studies of continuous crossed-field accelerators performed under the present con-tract represents an extension of previous accelerator investigations. The theoretical formulations have been improved through the use of im-proved analytic models and less restrictive physical assumptions and used in designing the experimental devices. The analysis and expsrl-mental results indicate that the electrical power dissipation in the lectrode drop region is the major source of heat transfer to "cold" electrodes. Experimental heat transfer values were determined froia calorimetric measurements on the water-cooled electrodes. Data obtained over a range of magnetic field strengths, accelerator power levels and channel pressures are shown to fit a correlation of the form developed analytically. indications are discussed that large ion currents exist In the cathode fall region and that low effective values of the cathotie work function ale not necessary to explain the current densities obtained with "cold" electrodes.