Radiation source for nondestructive inspection, and method and apparatus for manufacturing same
AssigneeChiyoda Technol Corporation
InventorsHiroshi KAWAMURA, Hidetaka KANAZAWA, Takashi SAITO, Takashi ISHII
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Abstract
An irradiation target is formed into a sphere. The spherical irradiation target can be iridium metal containing natural or enriched iridium. The radiation source can be manufactured by manufacturing a spherical irradiation target, accommodating the spherical irradiation target in a rotating capsule, and rotating an axial flow impeller by a downward flow of a reactor primary coolant, whereby the rotating capsule is rotated. This radiation source provides an improved nondestructive inspection image having a high geometric resolution, and has no radiation source anisotropy and also has high target recyclability.
Claims7
A radiation source for a nondestructive inspection, comprising an irradiation target shaped into a small sphere with a diameter of 0.5 to 1.5 mm.
A method for manufacturing a radiation source for a nondestructive inspection, comprising:
- manufacturing a spherical irradiation target;
- accommodating the spherical irradiation target in a rotating capsule;
- and
- rotating an axial flow impeller by a downward flow of a reactor primary coolant, whereby the rotating capsule is rotated.
An apparatus for manufacturing a radiation source for a nondestructive inspection, comprising:
- a rotating capsule that accommodates a spherical irradiation target;
- and
- an axial flow impeller that is rotated by a downward flow of a reactor primary coolant,
- whereby the rotating capsule being rotated by the axial flow impeller.
Dependencies are inferred from the claim text.