Patent ID: 11921252
Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A security screening device, comprising:
a radiation generator configured to produce an X-ray and neutron radiation and irradiate the X-ray and the neutron radiation toward an inspection object;
an inspection object transfer unit configured to change a position of the inspection object;
a shielding unit that is installed along a propagation path of the X-ray and the neutron radiation and selectively allows the X-ray and the neutron radiation to pass therethrough to prevent interference between the X-ray and the neutron radiation;
a radiation detector that is located at an opposite side of the radiation generator with the inspection object interposed therebetween and is configured to detect the X-ray and the neutron radiation that pass through the inspection object; and
a gamma ray detector that is installed adjacent to the inspection object and is configured to detect a gamma signal generated from the inspection object,
wherein the shielding unit includes:
an X-ray shielding part adjacent to a front side of the neutron radiation detection part to absorb an X-ray; and
a neutron radiation shielding part vertically disposed with respect to the X-ray shielding part and adjacent to a front side of the X-ray detection part to shield neutron radiation.