Gamma Spectroscopy is a technique used to measure and analyze the energy of gamma rays emitted by radioactive materials. By detecting these gamma rays, scientists can identify the specific isotopes present in a sample. This method is crucial in fields like nuclear physics, environmental monitoring, and medical diagnostics. The process involves using a detector, often a semiconductor or scintillation detector, to capture gamma rays. The energy levels of the detected rays are then plotted on a spectrum, allowing researchers to determine the composition and quantity of radioactive substances. This information is vital for safety assessments and research applications.