Neutron measuring system and neutron measuring method
AssigneeHeron Neutron Medical Corp.
InventorsWen-Chyi Tsai, Tzung-Yi Lin
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Abstract
A neutron measuring method is provided. The method includes utilizing the thermoluminescent crystal in the thermoluminescent dosimeter to convert the ionizing radiation emitted by an activated metallic body into scintillation light. The method further includes using a photodetector to measure the intensity of the scintillation light. The method further includes calculating the activity of the metallic body based on the intensity of the scintillation light and the second conversion factor. The method further includes using the second conversion formula to calculate the neutron intensity at the location of the metallic body based on the calculated activity of the metallic body.
Claims20
A neutron measuring system, comprising:
- a thermoluminescent dosimeter, comprising a thermoluminescent crystal, wherein the thermoluminescent crystal absorbs and stores ionizing radiation emitted by a metallic body that has been activated, and the thermoluminescent crystal releases the stored ionizing radiation in the form of thermoluminescence when heated;
- a photodetector, for measuring intensity of the thermoluminescence;
- and
- a computing device, connected to the photodetector, configured to:
- receive the intensity of the thermoluminescence from the photodetector;
- calculate a thermoluminescent dose of ionizing radiation absorbed and stored by the thermoluminescent crystal based on the intensity of the thermoluminescence and a thermoluminescence-dose calibration factor;
- use a first conversion formula to calculate activity of the metallic body based on the thermoluminescent dose and a first conversion factor;
- and
- use a second conversion formula to calculate neutron intensity at which the metallic body is located based on the calculated activity of the metallic body.
A neutron measuring method, comprising:
- heating a thermoluminescent dosimeter, wherein the thermoluminescent dosimeter comprises a thermoluminescent crystal, the thermoluminescent crystal absorbs and stores ionizing radiation emitted by a metallic body that has been activated, and the thermoluminescent crystal releases the stored ionizing radiation in the form of thermoluminescence when heated;
- using a photodetector to measure intensity of the thermoluminescence;
- calculating a thermoluminescent dose of ionizing radiation absorbed and stored by the thermoluminescent crystal based on the intensity of the thermoluminescence and a thermoluminescence-dose calibration factor;
- using a first conversion formula to calculate activity of the metallic body based on the thermoluminescent dose and a first conversion factor;
- and
- using a second conversion formula to calculate neutron intensity at which the metallic body is located based on the calculated activity of the metallic body.
A neutron measuring system, comprising:
- a thermoluminescent dosimeter, comprising a thermoluminescent crystal, wherein the thermoluminescent crystal converts ionizing radiation emitted by a metallic body that has been activated into scintillation light;
- a photodetector, for measuring intensity of the scintillation light;
- and
- a computing device, connected to the photodetector, configured to execute:
- receiving the intensity of the scintillation light from the photodetector;
- calculating activity of the metallic body based on the intensity of the scintillation light and a second conversion factor;
- and
- using a second conversion formula to calculate neutron intensity at which the metallic body is located based on the calculated activity of the metallic body.
A neutron measuring method, comprising:
- utilizing a thermoluminescent crystal in a thermoluminescent dosimeter to convert ionizing radiation emitted by a metallic body that has been activated into scintillation light;
- using a photodetector to measure intensity of the scintillation light;
- calculating activity of the metallic body based on the intensity of the scintillation light and a second conversion factor;
- and
- using a second conversion formula to calculate neutron intensity at which the metallic body is located based on the calculated activity of the metallic body.
Dependencies are inferred from the claim text.