Understanding of the Experimental Concept of Radiation Absorption of Radioactive Materials

Soni Prayogi (Department of Electrical Engineering, Faculty of Industrial Engineering, Pertamina University, Jakarta 12220 Indonesia)
Fitria Silviana (Department of Physics Education, Faculty of Mathematics and Natural Sciences, Medan State University, Medan 20221, Indonesia)
Zainuddin Zainuddin (Department of Physics Education, Faculty of Teacher Training and Education, Syiah Kuala University, Banda Aceh 23111, Indonesia)

Journal of Physics: Theories and Applications
Vol 7, No 1 (2023): Journal of Physics: Theories and Applications

In this article, we discuss the experimental absorption of radioactive light radiation on various materials using Geiger Muller. Under certain conditions, Geiger Muller can be used to determine the absorption coefficient of a material. The radioactive rays observed in this experiment are gamma rays. Gamma rays are radioactive rays that have no charge so they cannot be deflected by magnetic or electric fields and have the greatest penetrating power. We made several important results on experimental studies of the absorption of gamma radiation passing through matter. Our results relate to the trend of the unexpected, measured intensity of radiation versus the thickness of the absorber, which confuses students and cannot be explained by many laboratory assistants. Finally, we believe that a distribution function is an effective tool for examining the contribution of the build-up factor in the Geiger Muller calculation of the measured radiation intensity.