Method of luminescent solid state dosimetry of mixed radiations
AssigneeLandauer, Inc.
InventorsMark S. AKSELROD, Garrett J. Sykora
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Abstract
A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated.
Claims51
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A method comprising the following steps:
- (a) providing a depth profile of one or more dosimetric parameters for one or more radiations based on measurements of one or more high spatial resolution fluorescence images at different depths below the surface of a luminescent material covered by one or more converters;
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- (b) determining a median energy of one or more radiations based on the depth profile analysis.
A method comprising the following steps:
- (a) providing a first value of a first dosimetric parameter and a second value of a second dosimetric parameter;
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- (b) determining the median energy of neutrons in the radiation field based on the ratio between the first value and the second value, wherein the first value of the first dosimetric parameter is obtained for the luminescent material covered by a first converter and wherein the second value of the second dosimetric parameter is obtained for the luminescent material covered by a second converter, and wherein the first and second dosimetric parameters are each based on an analysis of one or more high spatial resolution fluorescence images of the luminescent material.
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Dependencies are inferred from the claim text.