Optical waveguide dosimeter
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsStanley Kronenberg, Harry Levine, William L. McLaughlin, Carl R. Siebentritt
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Abstract
An optical waveguide dosimeter for personnel dosimetry is provided including a liquid solution of leuko dye hermetically sealed in plastic tubing. Optical transport is improved by dipping the ends of the plastic tubing into clear epoxy, thus forming beads that serve as optical lenses. A layer of clear ultraviolet absorbing varnish coated on these beads and an opaque outer layer over the plastic tubing provides protection against ambient UV.
Claims22
An optical waveguide dosimeter, said dosimeter comprising flexible transparent tubing filled with a solution of leuko dye, the refractive index of the dye solution being greater than the refractive index of the transparent tubing, a protective flexible and opaque outside tubing over the transparent tubing, the ends of the transparent tubing being hermetically sealed, the ends of the transparent tubing further being provided with optical lenses to improve the numerical aperture, the optical lenses further being provided with a coating of a layer of clear ultraviolet absorbing varnish to provide protection against ambient UV.
A device for sensing ionizing radiation comprising:
- radiation transparent tubing filled with a transparent radiochromic liquid, said liquid having a transparency which changes with the intensity of ionizing radiation, the refractive index of the liquid being greater than the refractive index of the transparent tubing, an outer tubing opaque to ultraviolet light over the transparent tubing, the ends of the transparent tubing being enclosed and sealed to retain said liquid, and a clear ultraviolet absorbing coating over the enclosed ends to provide a shield against ambient ultraviolet light.
Dependencies are inferred from the claim text.