A baggage security machine is an inspection system used to screen luggage and packages for prohibited or dangerous items, commonly found in airports, hotels, government buildings, and other high-security areas. The most widely used type is the X-ray baggage scanner. Its main components include a conveyor belt, X-ray generator, detector sensors, image processing system, and a monitor for the operator. The machine is enclosed with protective shielding (usually lead-lined curtains) to prevent radiation leakage and ensure safe operation.

In operation, baggage is placed on the conveyor belt, which moves it through a tunnel where it is exposed to controlled X-ray beams. As the X-rays pass through the bag, different materials absorb them at different rates depending on their density and composition. The detectors capture the transmitted X-rays and send the data to a computer, which converts it into a detailed image displayed on the monitor. Organic materials (like food or plastics), metals, and dense objects appear in different colors, helping the operator identify suspicious items. The operator carefully examines the image and, if necessary, flags the bag for manual inspection. This process allows for quick, non-intrusive security checks while maintaining safety and efficiency.