Radiography measuring apparatus and radiography measuring method
AssigneeKabushiki Kaisha Toshiba
InventorsKoichi Nittoh, Kiyoharu Tsunokawa, Chikara Konagai
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Abstract
A neutron reactant layer (220) is directly coated inside an aluminum substrate (200) of an incident window (20). A first scintillator layer (201) is formed inside the neutron reactant layer 220, and a photoelectric conversion layer (202) is formed inside the first scintillator layer (201). A neutron reactant layer (210) is composed of enriched boron carbide (10B4C), and generates α-rays from neutrons by a (n, α) reaction in enriched boron. The first scintillator layer (201) is light-emitted by this α-rays.
Claims14
A radiography measuring apparatus, comprising:
- a neutron reactant layer formed at an incident window of radiation rays;
- a first scintillator layer in an acicular state formed on the neutron reactant layer, and emitting light by α-rays or electron-rays emitted by a reaction between the neutron reactant layer and neutrons;
- a photoelectric conversion layer formed on the first scintillator layer;
- an electron lens accelerating electrons emitted from the photoelectric conversion layer;
- a second scintillator layer emitting light by the electrons accelerated by the electron lens;
- and
- a camera capturing an image of the light-emission of the second scintillator layer.
A radiography measuring method, comprising:
- generating electrons from incident neutrons by using
- a neutron reactant layer formed at an incident window of radiation rays;
- a first scintillator layer in an acicular state formed on the neutron reactant layer, and emitting light by α-rays or electron-rays emitted by a reaction between the neutron reactant layer and neutrons;
- and
- a photoelectric conversion layer formed on the first scintillator layer;
- accelerating the electrons by an electron lens;
- making a second scintillator layer emit light by the accelerated electrons;
- and
- capturing an image of the light-emission of the second scintillator layer by a camera.
Dependencies are inferred from the claim text.