Experimente zur Erhöhung der Lichtbogentemperatur durch Reduktion der Wärmeleitfähigkeit in einem Magnetfeld*

Abstract

Currently, in different types of high pressure arc the maximum temperature is limited by radial heat conduction. Heat conduction can be reduced by a magnetic field parallel to the axis of the arc. An experiment is described in which arc temperatures in the region of 105 °K have been reached. Typical conditions for the discharge in hydrogen are: current = 2000 amps, magnetic field = 10 kGauss, power input = 4 kW per cm arc length, pressure inside the arc = 0,1 atmosphere. - A similar experiment was made with helium.