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Proceedings Paper

Isotopic hydrogen analysis via conventional and surface-enhanced fiber optic Raman spectroscopy
Author(s): Robert Lascola; Kristine Eland Zeigler; C. Scott McWhorter; Eliel Villa-Aleman; Laura L. Tovo; April E. Ward
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Paper Abstract

This report describes laboratory development and process plant applications of Raman spectroscopy for detection of hydrogen isotopes in the Tritium Facilities at the Savannah River Site (SRS), a U.S. Department of Energy complex. Raman spectroscopy provides a lower-cost, in situ alternative to mass spectrometry techniques currently employed at SRS. Using conventional Raman and fiber optics, we have measured, in the production facility glove boxes, process mixtures of protium and deuterium at various compositions and total pressures ranging from 1000 - 4000 torr, with detection limits ranging from 1-2% for as low as 3-second integration times. We are currently investigating fabrication techniques for SERS surfaces in order to measure trace (0.01-0.1%) amounts of one isotope in the presence of the other. These efforts have concentrated on surfaces containing palladium, which promotes hydrogen dissociation and forms metal hydride bonds, essentially providing a chemical enhancement mechanism.

Paper Details

Date Published: 7 December 2004
PDF: 11 pages
Proc. SPIE 5586, Advanced Environmental, Chemical, and Biological Sensing Technologies II, (7 December 2004); doi: 10.1117/12.571898
Show Author Affiliations
Robert Lascola, Savannah River National Lab. (United States)
Kristine Eland Zeigler, Savannah River National Lab. (United States)
C. Scott McWhorter, Savannah River National Lab. (United States)
Eliel Villa-Aleman, Savannah River National Lab. (United States)
Laura L. Tovo, Savannah River National Lab. (United States)
April E. Ward, Savannah River National Lab. (United States)


Published in SPIE Proceedings Vol. 5586:
Advanced Environmental, Chemical, and Biological Sensing Technologies II
Tuan Vo-Dinh; Gunter Gauglitz; Robert A. Lieberman, Editor(s)

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