Riken Corporation

Topcon Corporation

Koji Ikado

Shigenori Nagano

Yoshie Otake

Yuichi Yoshimura

Hideyuki Sunaga

Hisashi Tsukada

A neutron emission unit is configured to emit neutrons such that a center axis (Nh) of a neutron emission intersects a center axis direction of collimators (a toe). A calculation unit is capable of generating information about an inspection object in the center axis direction of the collimators, based on position information of a neutron detector and/or position information of the neutron emission unit, information about an angle (&#x3b8;) at which the center axis of the neutron emission intersects the center axis direction of the collimators, and a neutron amount detected by the neutron detector.

Nondestructive test system comprising a neutron emission unit for emitting fast neutrons and a neutron detection unit for detecting thermal neutrons, and nondestructive test method

A non-destructive inspection systemincludes a neutron radiation sourcecapable of emitting neutrons N, and a neutron detectorcapable of detecting neutrons Nb produced via an inspection objectamong neutrons N emitted from the neutron radiation source. The neutron radiation sourceincludes a linear acceleratorcapable of emitting charged particles P accelerated; a first magnet sectionincluding magnetsandfacing each other, the magnetsandbeing capable of deflecting the charged particles P in a direction substantially perpendicular to a direction of emission of the charged particles P from the linear accelerator; and a target sectioncapable of producing neutrons N by being irradiated with the charged particles P that have passed through the first magnet section

Non-destructive inspection system comprising neutron radiation source and neutron radiation method

A non-destructive inspection system includes: a neutron emission unitcapable of emitting neutrons pulsed; a neutron detector capable of detecting the neutrons emitted from the neutron emission unit and penetrating through an inspection object; a storage unit storing attenuation information indicating a relationship between a material of the inspection object and attenuation of the neutrons; and a calculation unit capable of calculating distance information indicating a position of a specific portion in the inspection object in accordance with time change information which is information on a change over time in an amount of the neutrons detected by the neutron detector. The calculation unit is capable of generating information related to an amount of the specific portion from information based on the amount of the neutrons according to the time change information, using the distance information and the attenuation information.

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Wako-Shi, Japan

Koji Ikado