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Title: Laser Raman spectroscopy and omegatron mass spectrometry applied to investigations of the radiochemical reactions between methane and tritium

Conference · · Fusion Technology; (United States)
OSTI ID:5068759
; ; ;  [1]
  1. Kernforschungszentrum Karlsruhe GmbH (Germany). Inst. fuer Radiochemie

This paper reports that the radiochemical reactions between methane and tritium were vicariously chosen for the evaluation of an omegatron type mass spectrometer and a laser Raman spectrometer in view of their analytical application in tritium systems. Assessment of the omegatron was extended beyond previous work on the quantitative analysis of all hydrogen isotopes and stable helium isotopes to include the determination of tritiated hydrocarbons. As opposed to mass spectrometry, laser Raman spectroscopy is an absolute method, which in principle is applicable to all polyatomic gases. For the employment in tritium systems an uhv-tight stainless steel gas cell using windows mounted in CF flanges with a flatness better than 1 lambda was constructed and tested. The Raman spectra of H{sub 2}, HD and D{sub 2} were measured and the pure rotation and rotation vibration branches assigned. The fundamental vibrations of methane and deuterated methanes have also been identified. First kinetic data on the {beta}-radiation induced exchange reaction between tritium and methane have been obtained with an omegatron.

OSTI ID:
5068759
Report Number(s):
CONF-910920-; CODEN: FUSTE
Journal Information:
Fusion Technology; (United States), Vol. 21:2; Conference: 4. topical meeting on tritium technology in fission, fusion, and isotopic applications, Albuquerque, NM (United States), 29 Sep - 4 Oct 1991; ISSN 0748-1896
Country of Publication:
United States
Language:
English