Detector physics is a field of study that focuses on the design, development, and operation of detectors used in various scientific disciplines such as particle physics, nuclear physics, astronomy, and medical imaging. Detectors are devices that detect and measure various forms of radiation or particles, such as photons, electrons, protons, or neutrons. Detector physics encompasses the study of the fundamental principles behind the interactions between radiation or particles and the detector material, as well as the development of new detector technologies to improve sensitivity, resolution, and efficiency. Researchers in this field work to understand the physical processes that occur within detectors and to optimize their performance for specific applications. Detector physics plays a crucial role in advancing scientific research and technological developments in a wide range of fields.