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Title: Portable spotter for fluorescent contaminants on surfaces

Abstract

A portable fluorescence-based spotter for polynuclear aromatic hydrocarbon contamination on personnel and work area surfaces under ambient lighting conditions is provided. This instrument employs beam modulation and phase sensitive detection for discriminating between fluorescence from organic materials from reflected background light and inorganic fluorescent material. The device uses excitation and emission filters to provide differentiation between classes of aromatic organic compounds. Certain inorganic fluorescent materials, including heavy metal compounds, may also be distinguished from the organic compounds, despite both having similar optical properties.

Inventors:
 [1]
  1. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863567
Patent Number(s):
4200801
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
portable; spotter; fluorescent; contaminants; surfaces; fluorescence-based; polynuclear; aromatic; hydrocarbon; contamination; personnel; ambient; lighting; conditions; provided; instrument; employs; beam; modulation; phase; sensitive; detection; discriminating; fluorescence; organic; materials; reflected; background; light; inorganic; material; device; excitation; emission; filters; provide; differentiation; compounds; including; heavy; metal; distinguished; despite; similar; optical; properties; aromatic organic; sensitive detection; background light; fluorescent material; heavy metal; organic compound; metal compound; organic materials; metal compounds; organic compounds; organic material; optical properties; aromatic hydrocarbon; phase sensitive; carbon contamination; ambient light; polynuclear aromatic; similar optical; /250/

Citation Formats

Schuresko, Daniel D. Portable spotter for fluorescent contaminants on surfaces. United States: N. p., 1980. Web.
Schuresko, Daniel D. Portable spotter for fluorescent contaminants on surfaces. United States.
Schuresko, Daniel D. Tue . "Portable spotter for fluorescent contaminants on surfaces". United States. https://www.osti.gov/servlets/purl/863567.
@article{osti_863567,
title = {Portable spotter for fluorescent contaminants on surfaces},
author = {Schuresko, Daniel D},
abstractNote = {A portable fluorescence-based spotter for polynuclear aromatic hydrocarbon contamination on personnel and work area surfaces under ambient lighting conditions is provided. This instrument employs beam modulation and phase sensitive detection for discriminating between fluorescence from organic materials from reflected background light and inorganic fluorescent material. The device uses excitation and emission filters to provide differentiation between classes of aromatic organic compounds. Certain inorganic fluorescent materials, including heavy metal compounds, may also be distinguished from the organic compounds, despite both having similar optical properties.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

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