(Helogen quenched)Geiger - Muller radiation counted tube (G. M. Tube) are intended to detect Alpha particulars, Beta particulars, Gamma or X-radiation.G. M. Tube consists of basically an electode at a positive potential (anode) surrounded by a metal cylinder at a negative potential (cathode). The cathode forms part of the envelope or is enclosed in a glass envelope. Tonizing events are initiated by quanta or particles entering the tube either through the window or through the cathode and colliding with gas molecules. The gas filling consists of a mixture of one or more rare gases and a quenching agent. Quenching is the termination of the ionization current pulse in a G. M. Tube. Effective quenching in our tube is determined by the combination of the quenching gas properties and the value of the anode resistor.