Abstract
ALTHOUGH much general information of soft X-ray spectra can be obtained by photoelectric methods, there is an urgent need for its direct spectroscopic confirmation. Dauvillier (Jour. de Phys. et le Rad., 8, 1; 1927) has recently photographed some lines of boron, carbon, oxygen, and thorium between 25 Å.U. and 125 Å.U. by refined methods of crystal spectrometry. Spectra in this region can also be obtained from a concave glass grating if it be mounted at a sufficiently large angle of incidence.
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OSGOOD, T. Soft X-ray Spectra. Nature 119, 817 (1927). https://doi.org/10.1038/119817b0
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DOI: https://doi.org/10.1038/119817b0
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