Dosimetry device for quantification of radiation
AssigneeISP Investments Inc.
InventorsRobert Crohn, David K. Hood
Life of this patent
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Abstract
Provided herein is a dosimetry device for quantifying the dosage of radiation emitted from a radiation source, the device comprising: (i) a radiation dose indicator; (ii) an optical means to capture the color change; and (iii) a software means to compare the optical density of the dose indicator as compared to a predetermined calibration curve. Also provided herein is a method of quantifying the dosage of radiation emitted from the radiation source. Further provided herein is use of said dosimetry device in various medical, food and industrial applications.
Claims11
A dosimetry device for quantifying a dosage of radiation emitted from a radiation source, the device comprising:
- (i) a radiation dose indicator comprising a radiation sensitive film prepared from polyacetylene, lithium, sodium, potassium or zinc salt of polyacetylene capable of measuring an amount of radiation emitted from a radiation source, wherein the radiation measured may be in a radiation dose range of about 0.01 Gray (Gy) per second to about 10,000 Gray (Gy) per second and producing a representation of the amount of radiation emitted as a color change;
- (ii) an optical means configured to capture the color change produced by the dose indicator after the dose indicator is exposed to the amount of radiation;
- and
- (iii) software configured to compare an optical density of the color change produced by the dose indicator with a predetermined calibration curve to quantify the dosage of radiation emitted from the radiation source, wherein the predetermined calibration curve is developed using a percentage of optical density versus a cumulative radiation dosage, and wherein the predetermined calibration curve is based on an optical density-red linear response characteristic of the radiation dose sensor.
A method of quantifying a dosage of radiation emitted from a radiation source, comprising the steps of:
- (i) exposing a dosimetry device to irradiation, said dosimetry device comprising a radiation sensitive indicator comprising a radiation sensitive film prepared from polyacetylene, lithium, sodium, potassium or zinc salt of polyacetylene configured to measure an amount of radiation emitted from the radiation source, wherein the radiation measured by the indicator may be in a radiation dose range of about 0.01 Gray (Gy) per second to about 10,000 Gray (Gy) per second and produce a visual representation of the amount of radiation as a color change;
- (ii) capturing the color change of the dose indicator after exposure to the amount of radiation using an optical means;
- and
- (iii) comparing an optical density corresponding to the color change to a predetermined calibration curve to quantify the dosage of radiation emitted from the radiation source, wherein the predetermined calibration curve is developed using percentage optical density versus cumulative radiation dosage, and wherein the predetermined calibration curve is based on an optical density-red linear response characteristic of the radiation dose sensor.
Dependencies are inferred from the claim text.