Curry, J.
, Henins, A.
, Estupinan, E.
, Lapatovich, W.
and Shastri, S.
(2011),
Measurement of equilibrium elemental vapor pressures using x-ray induced fluorescence, Chemical Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905739
(Accessed April 26, 2024)
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Measurement of equilibrium elemental vapor pressures using x-ray induced fluorescence
Published
Author(s)
, , E. G. Estupinan, W. P. Lapatovich, S. D. Shastri
Abstract
X-ray induced fluorescence is demonstrated as a fast and accurate method for measuring elemental vapor pressures over a wide range of pressures. As such, it may offer a preferable alternative to existing methods such as those based on effusion. Measurements were made at the Advanced Photon Source on Beamline 1-ID, where the elemental vapor pressures of Dy over DyI$_3$ and Tm over TmI$_3$ were obtained across the range of partial pressures from 300 mtorr to 700 torr. The results agree well with existing data, but extend to considerably higher temperature and pressure. Individual data points were obtained in time periods ranging from 10 s to 30 s each. The estimated random uncertainties in the measured pressures range from $\pm$ 40 \% at 300 mtorr to $Citation
Chemical Physics Letters
Volume
507
Pub Type
Journals
Download Paper
Keywords
fluorescence, lighting, measurement, metal-halide, pressure, synchrotron, technique, vapor, x ray
Citation
Created March 22, 2011, Updated February 19, 2017