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Title: Enhanced sensitivity of Raman spectroscopy for tritium gas analysis using a metal-lined hollow glass fiber

The precise compositional analysis of tritium-containing gases is of high interest for tritium accountancy in future fusion power plants. Raman spectroscopy provides a fast and contact-free gas analysis procedure with high precision, thus being an advantageous tool for the named purpose. In this paper, it is shown that the sensitivity achieved with conventional Raman systems (in 90 degrees or forward/backward configurations) can be enhanced by at least one order of magnitude by using a metal-lined hollow glass fiber as the Raman cell. This leads to the ability of detecting low partial pressures of tritium within short measurement intervals (< 0.5 mbar in < 0.5 s) opening the way for real-time applications.
Authors:
; ;  [1] ; ;  [2]
  1. Institute of Technical Physics, Tritium Laboratory Karlsruhe, Karlsruhe Institute of Technology - KIT, Karlsruhe (Germany)
  2. Department of Physics, Swansea University, Swansea (United Kingdom)
Publication Date:
OSTI Identifier:
22429763
Resource Type:
Journal Article
Resource Relation:
Journal Name: Fusion Science and Technology; Journal Volume: 67; Journal Issue: 3; Conference: TRITIUM 2013: 10. International Conference on Tritium Science and Technology, Nice Acropolis (France), 21-25 Oct 2013; Other Information: Country of input: France; 18 refs.
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; FIBERGLASS; GAS ANALYSIS; PARTIAL PRESSURE; RAMAN SPECTROSCOPY; SENSITIVITY; THERMONUCLEAR POWER PLANTS; TRITIUM