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X-ray absorption spectroscopy set-up for unstable gases: A study of 5p HydridesRobert Hauko,
Jana Padežnik Gomilšek,
Alojz Kodre,
Iztok Arčon, 2020, original scientific article
Abstract: An absorption cell is constructed for x-ray absorption spectroscopy of reactive, unstable or hazardous gases at
room temperature. In conjunction with in-situ micro-synthesis technique relying on handling the gas in syringes
it enabled a first measurement of x-ray absorption spectra in the region of K and L edges for the series of hydrides
of 5p elements (SnH4, SbH3, TeH2, HI). The signal-to-noise ratio above 103 was achieved, whereby fine detail is
discerned in the spectra, in particular the small sharp features above each absorption edge, testifying of coexcitations
of outer electrons in the core photoeffect.
Keywords: X-ray absorption spectroscopy
Micro-synthesis absorption cell
Gaseous hydrides
Multielectron photoexcitations
Published in RUNG: 10.02.2020; Views: 4474; Downloads: 0
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