**4. Conclusions**

This section manages gamma foundation radiation which uncovered with two noteworthy normal sources; earthly gamma rays and astronomical rays.

Recent studies in building materials, medical plants, building purposes, some vegetables and fruits commonly used in markets, and different soil samples in various countries in the world. The measurements of gamma background radiation differ according to the purpose. Each type of detectors is explained which are: radiographic films (scintillation detector), TLD detector (thermoluminescence detector), diode detector, and HPGe detector. The mechanism for each detector is provided with recently applied researches for the past 10 years, focusing on used gamma background radiations measurements.
