Scatter Radiation and its Control

This presentation defines scatter radiation as X-ray energy that changes path and wavelength after hitting a target, posing risks to both patients and medical staff. To manage these hazards, the source describes the use of filters to remove low-energy rays and collimators to limit the beam's physical size. A significant portion of the text focuses on radiographic grids, which are lead-striped devices placed before the film to absorb stray rays and enhance image contrast. These tools are evaluated based on their grid ratio and frequency, which determine how effectively they clean up the image. Finally, the material introduces the air gap technique as a physical method to let secondary radiation dissipate before reaching the detector.