The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 1983
Filed:
May. 11, 1981
Michael J Marrone, Severna Park, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An optical fiber dosimeter for monitoring by luminescence the presence of ionizing radiation and measuring a cumulative dose from around reactors, accelerators and waste storage areas. A length of silica core optical fiber in the presence of ionizing radiation has been found to luminesce in two distinct emission bands, one with a peak around 450 nm (blue) and the other with a peak around 650 nm (red). The intensity of the red luminescence is proportional to the intensity of ionizing radiation on the fiber whereas the intensity of blue luminescence is proportional to both the intensity of ionizing radiation on the fiber and the accumulated ionizing radiation history or dosage on the fiber. A device constructed according to the invention may be employed to surround an area of a human body tissue or organ undergoing radiation treatment as an aid in directing the radiation.