Method for calibrating a radiation detection medium
AssigneeISP Investments Inc.
InventorDavid F Lewis
Life of this patent
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Abstract
A method for calibrating a radiation detection medium by exposing arbitrary locations of a radiation detection medium to a plurality of known radiation dose levels is described. One particular aspect of the method includes the steps of automatically determining the location of each arbitrary exposed location, measuring the density of each of the arbitrary exposed locations, matching each measurement for the arbitrary exposed locations with the corresponding radiation dose level thereby generating an array of paired data values for radiation dose level and measured density and calculating a calibration based on the array of paired data values.
Claims14
A method for calibrating a radiation detection medium comprising:
- exposing arbitrary areas of a radiation detection medium to a plurality of known radiation dose levels wherein each exposed arbitrary area is in a location and corresponds to a known radiation dose level,
- scanning the exposed detection medium and automatically determining the location for each exposed arbitrary area,
- measuring each of the exposed arbitrary areas,
- matching each measurement for the exposed arbitrary areas with the corresponding radiation dose level, thereby generating an array of paired data values for radiation dose level and measured exposure, and
- calculating a calibration based on the array of paired data values.
A method for calibrating a radiation detection medium comprising:
- irradiating a radiation detection medium with at least three different radiation dose levels, each dose level being applied to an arbitrary area on the detection medium to produce an exposed detection medium comprising random irradiated areas,
- capturing an image of the exposed detection medium to form a scanned image,
- analyzing the scanned image to detect each of the irradiated areas on the detection medium,
- determining the dose level corresponding to each irradiated area, and
- calculating a calibration for the detection medium based on density as a function of dose level.
Dependencies are inferred from the claim text.