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:
May. 22, 2012
Filed:
Nov. 21, 2008
Frederic Lacroix, Montreal, CA;
Luc Beaulieu, Quebec, CA;
Sam Beddar, Houston, TX (US);
Mathieu Guillot, Quebec, CA;
Luc Gingras, Quebec, CA;
Louis Archambault, Houston, TX (US);
Frederic Lacroix, Montreal, CA;
Luc Beaulieu, Quebec, CA;
Sam Beddar, Houston, TX (US);
Mathieu Guillot, Quebec, CA;
Luc Gingras, Quebec, CA;
Louis Archambault, Houston, TX (US);
Other;
Abstract
A radiation dosimetry apparatus and method use a scintillating optical fiber array for detecting dose levels. The scintillating optical fiber detectors generate optical energy in response to a predetermined type of radiation, and are coupled to collection optical fibers that transmit the optical energy to a photo-detector for conversion to an electrical signal. The detectors may be embedded in one or more modular, water-equivalent phantom slabs. A repeatable connector couples the collection fibers to the photo-detector, maintaining the fiber ends in a predetermined spatial relationship. The detector fibers may be distributed as desired in a three-dimensional detection space, and may be oriented with their longitudinal axes at different orientations relative to a transmission axis of an incident radiation beam. A calibration method uses two measurements in two spectral windows, one with irradiation of the scintillator at a known dose and one with only irradiation of the collection fiber.