Detection of ionize radiation with Geiger-Müller tube

This work deals with problems related with detection and measuring of the ionisated radiation. First part of this work is devoted to theoretical problems of detection, particulary to measuring with Geiger Muller tubes. Second part of the work contains proposal of electronical circuit using Geiger Muller tube as well as description of results experimentally acquired while using the detector, which was manufactured according to the proposed scheme. On the basis of those results it appears that proposed apparatus can be used for significant indication range extension