Optical coupler
Abstract
In a camera or similar radiation sensitive device comprising a pixilated scintillation layer, a light guide and an array of position sensitive photomultiplier tubes, wherein there exists so-called dead space between adjacent photomultiplier tubes the improvement comprising a two part light guide comprising a first planar light spreading layer or portion having a first surface that addresses the scintillation layer and optically coupled thereto at a second surface that addresses the photomultiplier tubes, a second layer or portion comprising an array of trapezoidal light collectors defining gaps that span said dead space and are individually optically coupled to individual position sensitive photomultiplier tubes. According to a preferred embodiment, coupling of the trapezoidal light collectors to the position sensitive photomultiplier tubes is accomplished using an optical grease having about the same refractive index as the material of construction of the two part light guide.
- Inventors:
- Issue Date:
- Research Org.:
- Southeastern Universities Research Association, Inc.,Newport News, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174903
- Patent Number(s):
- 6750456
- Application Number:
- 09/577,701
- Assignee:
- Southeastern Universities Research Association, Inc.
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- DOE Contract Number:
- AC05-84ER 40150
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Citation Formats
Majewski, Stanislaw, and Weisenberger, Andrew G. Optical coupler. United States: N. p., 2004.
Web.
Majewski, Stanislaw, & Weisenberger, Andrew G. Optical coupler. United States.
Majewski, Stanislaw, and Weisenberger, Andrew G. Tue .
"Optical coupler". United States. https://www.osti.gov/servlets/purl/1174903.
@article{osti_1174903,
title = {Optical coupler},
author = {Majewski, Stanislaw and Weisenberger, Andrew G.},
abstractNote = {In a camera or similar radiation sensitive device comprising a pixilated scintillation layer, a light guide and an array of position sensitive photomultiplier tubes, wherein there exists so-called dead space between adjacent photomultiplier tubes the improvement comprising a two part light guide comprising a first planar light spreading layer or portion having a first surface that addresses the scintillation layer and optically coupled thereto at a second surface that addresses the photomultiplier tubes, a second layer or portion comprising an array of trapezoidal light collectors defining gaps that span said dead space and are individually optically coupled to individual position sensitive photomultiplier tubes. According to a preferred embodiment, coupling of the trapezoidal light collectors to the position sensitive photomultiplier tubes is accomplished using an optical grease having about the same refractive index as the material of construction of the two part light guide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 15 00:00:00 EDT 2004},
month = {Tue Jun 15 00:00:00 EDT 2004}
}