What Is a Gamma Detector?
A gamma detector is a device designed to detect electromagnetic waves in a specific wavelength range known as gamma rays.
Two commonly used types are scintillation detectors and semiconductor detectors. Scintillation detectors utilize materials that emit fluorescence when exposed to gamma rays. Materials like sodium iodide are employed, and by analyzing the pattern and intensity of the light (scintillation) generated when gamma rays interact with the material, the presence and wavelength range of gamma rays can be detected.
On the other hand, semiconductor detectors detect the current generated by the charge produced within a semiconductor device due to gamma rays. Materials like germanium are used, and applying high voltage is necessary for detection.
Gamma detectors find applications in measuring radiation doses, medical diagnostics, and detecting nuclear materials.