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Round robin analyses of hydrogen isotope thin films standards

Banks, J.C.; Browning, J.F.; Wampler, W.R.; Doyle, Barney L.; LaDuca, C.A.; Tesmer, J.R.; Wetteland, C.J.; Wang, Y.Q.

Hydrogen isotope thin film standards have been manufactured at Sandia National Laboratories for use by the materials characterization community. Several considerations were taken into account during the manufacture of the ErHD standards, with accuracy and stability being the most important. The standards were fabricated by e-beam deposition of Er onto a Mo substrate and the film stoichiometrically loaded with hydrogen and deuterium. To determine the loading accuracy of the standards two random samples were measured by thermal desorption mass spectrometry and atomic absorption spectrometry techniques with a stated combined accuracy of ∼1.6% (1σ). All the standards were then measured by high energy RBS/ERD and RBS/NRA with the accuracy of the techniques ∼5% (1σ). The standards were then distributed to the IBA materials characterization community for analysis. This paper will discuss the suitability of the standards for use by the IBA community and compare measurement results to highlight the accuracy of the techniques used. © 2004 Elsevier B.V. All rights reserved.