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Compact determination of hydrogen isotopes

Journal Article · · Fusion Science and Technology
 [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
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Scanning calorimetry of a confined, reversible hydrogen sorbent material has been previously proposed as a method to determine compositions of unknown mixtures of diatomic hydrogen isotopologues and helium. Application of this concept could result in greater process knowledge during the handling of these gases. Previously published studies have focused on mixtures that do not include tritium. This paper focuses on modeling to predict the effect of tritium in mixtures of the isotopologues on a calorimetry scan. Furthermore, the model predicts that tritium can be measured with a sensitivity comparable to that observed for hydrogen-deuterium mixtures, and that under so me conditions, it may be possible to determine the atomic fractions of all three isotopes in a gas mixture.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1333377
Report Number(s):
SAND--2016-7988J; 646681
Journal Information:
Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 3 Vol. 71; ISSN 1536-1055
Publisher:
American Nuclear SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (7)

Studies of isotopic exchange between gaseous hydrogen and palladium hydride powder journal December 1987
The effect of isotopic substitution on the thermodynamic properties of palladium-hydrogen alloys journal January 1986
Metal hydride differential scanning calorimetry as an approach to compositional determination of mixtures of hydrogen isotopologues and helium journal November 2015
The effect of isotopic substitution on the α-α' phase transition in metal-hydrogen systems journal November 1985
Palladium-tritium system journal September 1982
Solubility of hydrogen isotopes in palladium journal July 1983
Solubility of H, D, and T in Pd at low concentrations journal July 1986

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY