Which type of scatter is considered the most common and most dangerous during diagnostic procedures?

Compton scatter is the most common type of scatter radiation encountered during diagnostic imaging procedures. This interaction occurs when X-ray photons collide with loosely bound outer shell electrons of an atom, resulting in the ejection of the electron and the scattering of the X-ray photon in a different direction with reduced energy. The significance of Compton scatter lies in its ability to occur across a wide range of photon energies and its contribution to the overall radiation dose received by both patients and healthcare workers.

In a clinical context, Compton scatter is particularly problematic because it results in the production of secondary radiation that can expose individuals in the vicinity of the primary radiation source. This scatter radiation contributes to the overall radiation exposure during imaging procedures, which is a critical consideration for radiation protection practices. The scattered photons retain enough energy to potentially cause biological damage, making them a major concern in terms of occupational exposure and patient safety.

In contrast, while coherent scatter and photoelectric scatter play roles in diagnostic imaging, they do not contribute as significantly to radiation dose. Coherent scatter involves low-energy photons that typically result in no energy loss and does not pose a significant hazard. Photoelectric absorption is also less prevalent in diagnostic imaging, especially at higher energy ranges, as it occurs primarily when the photon energy is