Patent ID: 9274244
Filing Date: 2016-03-01
CPC Classification: G01V

Claim Text:
1. A security checking system comprising: an electron beam (eBeam) acceleration unit to accelerate an eBeam having at least one energy level; an X-ray guide unit to convert the eBeam accelerated by the eBeam acceleration unit into X-rays and guide the X-rays to an object including a cargo; a neutron guide unit to convert the eBeam accelerated by the eBeam acceleration unit into neutrons and guide the neutrons to the object; and a detection unit to detect the X-rays and the neutrons passed through the object, wherein the X-ray guide unit comprises at least one first conversion unit to convert the eBeam into the X-rays and at least one first collimator unit to guide the X-rays to the object, the neutron guide unit comprises at least one second conversion unit to convert the eBeam into the neutrons and at least one second collimator unit to guide the neutrons to the object, and a length of the second conversion unit is larger than a length of the first conversion unit with respect to a direction in which the eBeam is converted to the neutrons and advanced.