US 11,921,252 B2
Security screening device capable of detecting and locating dangerous objects by using radiation
Byeongno Lee, Jeongeup-si (KR); Kyungmin Oh, Jeonju-si (KR); Namho Lee, Jeonju-si (KR); Moonsik Chae, Jeollabuk-do (KR); Jungho Mun, Jeongeup-si (KR); Yeongheum Yeon, Hwaseong-si (KR); and Jinsik Ju, Busan (KR)
Assigned to KOREA ATOMIC ENERGY RESEARCH INSTITUTE, Daejeon (KR)
Appl. No. 17/425,856
Filed by KOREA ATOMIC ENERGY RESEARCH INSTITUTE, Daejeon (KR)
PCT Filed Jan. 28, 2020, PCT No. PCT/KR2020/001288
§ 371(c)(1), (2) Date Jul. 26, 2021,
PCT Pub. No. WO2020/153831, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 10-2019-0009402 (KR), filed on Jan. 24, 2019.
Prior Publication US 2022/0187222 A1, Jun. 16, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01V 5/00 (2006.01); G01N 23/05 (2006.01); G01N 23/222 (2006.01)
CPC G01V 5/0033 (2013.01) [G01N 23/05 (2013.01); G01N 23/222 (2013.01); G01V 5/0008 (2013.01); G01V 5/0041 (2013.01); G01V 5/0069 (2016.11)] 20 Claims
OG exemplary drawing
 
1. 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 radiation detector configured to detect an X-ray and neutron radiation passed through the inspection object; and
at least two gamma ray detectors that are installed adjacent to the inspection object and are configured to detect a gamma signal generated from the inspection object;
wherein the radiation detector obtains image information of the inspection object using radiation information detected from the X-ray and the neutron radiation passed through the inspection object, and
wherein a controller, configured to control the radiation detector and the radiation detector, analyzes the detected gamma signal to analyze the inspection object, and identifies a location of a hazardous material contained in the inspection object from the image information,
wherein the at least two gamma ray detectors are located parallel to each other and are located along an entirety of each side of the inspection object transfer unit respectively.