Portable spotter for fluorescent contaminants on surfaces
Patent
·
OSTI ID:7145488
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. 4 figs.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 4200801; A
- Application Number:
- PPN: US 6-024803
- OSTI ID:
- 7145488
- Country of Publication:
- United States
- Language:
- English
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