US 2019/0360949 A1 · NEUTRON RADIOGRAPHY METHOD AND APPARATUS FOR THE IMPLEMENTATION THEREOF

Abstract

A method and apparatus for neutron radiography is provided for the examination of elongate radioactive items, primarily nuclear fuel elements, and also for the non-destructive testing of irradiated and non-irradiated objects in order to determine the internal structure and material composition thereof. The method and apparatus include placing an object under examination into a protective container. A detection system includes a rotatable limb with a mounting seat for securing neutron detectors in a diametric groove. The limb being mounted to be rotatable by a set angle about an axis parallel to the axis of the object under examination and having a semi-circular recess therein for the passage of an elongate object as the limb rotates by an angle ±αi relative to the direction of a neutron beam.

Claims6

Dependent claims

A method of neutron radiography comprising:

placing an object under examination into a protective container,
placing the container on a bed via a mounting seat and rigidly securing therein,
mounting a first detector in a groove in a limb integrated into the bed and made in the form of a rotatable disk with a semi-circular recess,
setting an angle (+α) between a direction of radiation and the detector,
supplying a neutron beam, after irradiation moving the first detector from a box to a special container to bring it into contact with a photofilm,
mounting a second detector in the groove, setting an angle (−α) between the direction of radiation and the second detector,
carrying out irradiation, after irradiation moving the second detector from the box to the special container to bring into contact with a photofilm,
processing exposed films to obtain images at an angle of ±α, (|+α|=|−α|),
varying which a stereoscopic image can be produced.

6 more elements

Dependencies are inferred from the claim text.

Neutron radiography method and apparatus for the implementation thereof

Life of this patent

Neutron radiography method and apparatus for the implementation thereof

Life of this patent

Abstract

Claims6