Use of GM Tube Survey Meter High Voltage for Corona Electric Discharge Experiment

Abstract

For the purpose of utilizing the high voltage of a Geiger-Mueller (GM) tube survey meter for corona electric discharge experiment, the relation between the applied high voltage and corona discharge current for the different curvatures of the tips of the electrodes was examined both experimentally and theoretically. As a result, a new electric discharge phenomenon “triggered corona discharge” with the help of the usage of a leaf electroscope and tribo-electricity was found. Performance of science experiment such as corona electric discharge after radiation education experiments using the same GM tube survey meter is an effective use of the equipment and also helpful to understand “ionization phenomenon” from different perspectives of nuclear radiation, electric discharge and tribo-electricity.