公开(公告)号：US20240295511A1

公开(公告)日：2024-09-05

申请号：US18648861

申请日：2024-04-29

Applicant: RIKEN

Inventor： Yasuo WAKABAYASHI ,  Yoshie OTAKE ,  Massato TAKAMURA ,  Yujiro IKEDA

IPC: G01N23/222 ,  G01N33/38

CPC classification number: G01N23/222 ,  G01N33/383 ,  G01N2223/0745 ,  G01N2223/1013 ,  G01N2223/106

Abstract: A non-destructive inspection device includes a neutron generation portion, a neutron shield portion, a gamma ray detector, and a gamma ray shield portion. The neutron generation portion emits neutrons spontaneously, or emits neutrons by DD nuclear fusion reaction or DT nuclear fusion reaction. The neutron shield portion is covers the neutron generation portion from at least an area around the neutron generation portion and thereby shields the neutrons at the area, and allows the neutrons to be emitted to a front side of the neutron generation portion. The gamma ray detector detects gamma rays generated in an inspection object on a front side of the neutron generation portion. The gamma rays are generated by the neutrons incident on the inspection object. The neutron shield portion, the gamma ray shield portion, and the gamma ray detector are arranged in this order in alignment with each other in a lateral direction.