Fan beam

A fan beam is a type of radiation or sensor pattern used in imaging and scanning systems. Imagine a broad, fan-shaped spread of energy—like a wide, flat blade—produced or detected from a single point source or detector. This shape allows the system to cover a wide area in a single pass, making it efficient for capturing detailed images or data of an object or scene. Fan beams are commonly used in medical imaging, such as CT scans, and industrial inspections, providing high-resolution data by passing through or around objects in a sweeping motion.