The nucleus of radioactive atoms emits high-energy electromagnetic radiation, known as Gamma Radiation. Because of its penetrating power and capacity to destroy hazardous bacteria. It is used for a variety of applications, such as medical imaging (such as PET scans), industrial applications (such as material testing), and sterilizing. Real-time gamma radiation monitoring is crucial for safety in nuclear facilities and environmental protection, as it allows for immediate detection and response to potential radiation hazards. This research paper explore the Radiation monitoring Technologies, gamma spectroscopy and survey on implementing the FPGA-based radiation detection systems. This work also highlight’s the advantages of digital signal processing using FPGA for more informative data analysis, high resolution measurements are possible there as well as pulse discrimination in nuclear spectroscopy. This leads to development in the area of radiation detection and spectroscopy resulting in new opportunities for a better radiation monitoring.