skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fiber-type dosimeter with improved illuminator

Abstract

A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6532024
Application Number:
ON: DE87007287
Assignee:
Dept. of Energy
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DOSEMETERS; CONDENSER IONIZATION CHAMBERS; OPTICAL FIBERS; ELECTROMETERS; ILLUMINANCE; IONIZATION CHAMBERS; LUCITE; POLYPROPYLENE; ELECTRIC MEASURING INSTRUMENTS; ELECTRICAL EQUIPMENT; EQUIPMENT; ESTERS; FIBERS; MATERIALS; MEASURING INSTRUMENTS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYACRYLATES; POLYMERS; POLYOLEFINS; POLYVINYLS; RADIATION DETECTORS; SYNTHETIC MATERIALS; 440102* - Radiation Instrumentation- Radiation Dosemeters

Citation Formats

Fox, R J. Fiber-type dosimeter with improved illuminator. United States: N. p., 1985. Web.
Fox, R J. Fiber-type dosimeter with improved illuminator. United States.
Fox, R J. Mon . "Fiber-type dosimeter with improved illuminator". United States.
@article{osti_6532024,
title = {Fiber-type dosimeter with improved illuminator},
author = {Fox, R J},
abstractNote = {A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {12}
}