Production Engineering Measure for High Range Geiger Mueller Tube.

This program is an investigation of the proper techniques employed to provide stable, predictable performance G-M tubes for use as the high range detector of the ANVDR-1. The techniques include special cathode and anode surface treatment to prevent secondary emissions and resultant spurious counts instability and up-dated outgassing and filling procedures based on the first and second group of engineering test samples to improve gas stability and reduce absorption thereby improving starting voltage stability.