Radiation Detection of Alfa, Beta, and Gamma Rays With Geiger Muller Detector

Alfa, beta and gamma ray detection research has been done with Geiger Mullerdetector which is aimed to know the influence of distance to the radiation intensity and the influence of barrier thickness to the radiation intensity of radioactive rays. In this study three radioactive sources of alpha, beta and gamma rays were used. While the type of barrier used were aluminum, copper and plastic. Based on the results of the research, it was found that the radiation intensity of radioactive rays was inversely proportional to the square of the radioactive source distance to the Geiger Muller detector. In addition, the thicker the barrier through which the radioactive rays are, the smaller the radiation intensity shown in the digital counter. In this case based on the thickness of the buffer, the barrier which has the greatest radiation intensity to the smallest are the plastics, aluminum, and copper. When comparing the intensities of the three radioactive sources,the greatest penetrating power to the smallest of the three radioactive elements are,respectively, gamma rays, beta rays and alpha rays