公开(公告)号：US20230213462A1

公开(公告)日：2023-07-06

申请号：US18008747

申请日：2021-06-18

Applicant: RIKEN

Inventor： Yoshie OTAKE ,  Yoshimasa IKEDA ,  Yuichi YOSHIMURA ,  Takao HASHIGUCHI ,  Maki MIZUTA ,  Hirokazu KITAGAWA ,  Kenta KATO

IPC: G01N23/20008 ,  G01N33/2045

CPC classification number: G01N23/20008 ,  G01N33/2045

Abstract: A cable inspection device non-destructively inspects a cable used for supporting a bridge. The cable inspection device includes a neutron source and a neutron detection device. The neutron source emits neutrons to the cable. The neutron detection device includes a detection surface arranged outside the cable, and detects target neutrons and measures the number of the detected target neutrons when neutrons are emitted to the cable. The target neutrons are among the neutrons released from the cable and incident on the detection surface, and each have an energy equal to or lower than a predetermined value that is lower than an energy of a fast neutron.

公开(公告)号：US20180259462A1

公开(公告)日：2018-09-13

申请号：US15910706

申请日：2018-03-02

Applicant: RIKEN

Inventor： Yoshie OTAKE ,  Yoshimasa IKEDA

IPC: G01N23/204 ,  G01T3/06

CPC classification number: G01N23/204 ,  G01T3/06 ,  G01V5/0025

Abstract: A non-destructive inspection device 10 using backscattering of neutrons includes a neutron source 3 that radiates a pulse neutron beam to a surface 1a of an inspection target 1, a neutron detection device 5 that detects scattered neutrons scattered in the inspection target 1 and returned, and a measurement device 7 that measures the detection number of scattered and returned neutrons detected by the neutron detection device 5 and generates detection number data expressing the detection number with respect to time.