Radiation dosimeter
AssigneeThe Mead Corporation
InventorsTodd M. Hess, Peter Gottschalk
Life of this patent
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Abstract
The present invention provides a radiation dosimeter comprising a support having a layer of microcapsules on the surface thereof. The microcapsules comprise a wall and an internal phase of a solution of a radiochromic dye. Upon exposure to radiation, the radiochromic dye changes color or shade plus density. The radiation dosimeter can be supplied in large as well as small formats.
Claims15
A radiation dosimeter comprising a support having a layer of microcapsules on the surface thereof, said microcapsules comprising a wall and an internal phase, said internal phase comprisinq a solution of a radiochromic dye, said radiochromic dye solution being capable of changing color or shade plus density upon exposure to gamma, ultraviolet or electron beam radiation.
A process for detecting and/or measuring gamma, ultraviolet or electron beam radiation comprising the steps of:
- exposing a dosimeter to radiation, said dosimeter comprising a support having a layer of microcapsules on the surface thereof, said microcapsules comprising a wall and an internal phase, said internal phase comprising a solution of a radiochromic dye, said radiochromic dye solution being capable of changing color or shade plus density upon exposure to gamma, ultraviolet or electron beam radiation;
- and
- comparing the color, shade, or density of said radiochromic dyes with a standard to determine the amount of gamma, ultraviolet or electron beam radiation received.
A process for detecting and/or measuring radiation comprising the steps of:
- exposing a radiation dosimeter to radiation, said dosimeter commprising a transparent support having a layer of microcapsules on the surface thereof, said microcapsules comprising a wall and an internal phase, said internal phase comprising a solution of radiochromic dye, said radiochromic dye solution baing capable of changing color or shade plus density upon exposure to gamma, ultraviolet or electron beam radiation;
- and
- determining the amount of gamma, ultraviolet or electron beam radiation received by a spectrophotometer or a densitometer.
Dependencies are inferred from the claim text.