Fiber-optic spectrochemical emission sensors
A new class of fiber optic chemical sensor is presently under development at the Pacific Northwest Laboratory. The new probe type, termed fiber optic spectrochemical emission sensor (FOSES), implements either electrical spark or radio frequency excitation (via helium plasma) of analyte species at the probe tip for remote in situ detection. The two excitation modes offer complementary chemical detection methods suitable for vapors, aerosols, or liquid samples. The new probe concept offers the potential for multi-point real-time field sampling and mapping of groundwater contamination plumes or airborne chemical contamination. This paper addresses probe designs, probe characteristics and performance, detection limits, and future concepts for multi-point sampling systems. 14 refs., 15 figs.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6840449
- Report Number(s):
- PNL-SA-16192; CONF-8809105-2; ON: DE88017175
- Resource Relation:
- Conference: SPIE O-E Lase: international symposium and exhibition on fiber optics, optoelectronics and laser applications, Boston, MA, USA, 6 Sep 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
FIBER OPTICS
WATER POLLUTION MONITORS
AEROSOL MONITORING
CHEMICAL EFFLUENTS
FLOWSHEETS
GROUND WATER
HELIUM
IN-SITU PROCESSING
NUMERICAL DATA
OPTICAL FIBERS
PLASMA
AIR POLLUTION MONITORING
DATA
DIAGRAMS
ELEMENTS
FIBERS
FLUIDS
GASES
HYDROGEN COMPOUNDS
INFORMATION
MEASURING INSTRUMENTS
MONITORING
MONITORS
NONMETALS
OXYGEN COMPOUNDS
PROCESSING
RARE GASES
WATER
440300* - Miscellaneous Instruments- (-1989)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)