Experimental Results of Breakdown Voltage and Electrical Breakdown Time Delay of Geiger-Muller Chamber

The paper analyzes the experimental data of two important quantities of Geiger-Muller (GM) chamber. One is the dynamic voltage Ub which was measured for different voltage increase rate k. The second quantity is electrical breakdown time delay td which was measured for different relaxation time τ. Since these quantities of a statistical nature, their distributions were determined. Ub = f(k) dependence was used to estimate the static breakdown voltage Us, where Ub represents the mean value of the dynamic breakdown voltage. Monitoring of the process of recombination/de-excitation of particles after the interruption of electrical discharge was performed on the basis td = g(τ), where td represents the mean value of electrical breakdown time delay. It has been shown that the presence of this particles in the working gas of the CM chamber can be monitored up to concentration when the main role in initiating the breakdown played by electrons that form cosmic radiation and natural radioactivity in the inter-electrode space.