Abstract
THE Kα line of beryllium, occurring at the very long wave-length of 115.7 A., was measured by Söderman1, who found it to consist of a broad band 10 A. wide. In view of the recently discovered fine structure of the carbon Kα. line, I have re-investigated the beryllium soft X-ray spectrum, and, as the spectrogram (Fig. 1) shows, have found it to consist of two diffuse components. That at the longer wave-length is the stronger. The separation is 5.3 A. or 4.8 electron-volts. The measurement of the long-wave component is, however, difficult, as it coincides with the fifth order of oxygen Kα. A comparison of the width of the component with that of the fourth order of oxygen K. shows that it is too wide to be due to the oxygen line.
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References
Phil. Mag., 10, 600 ; 1930. See also: Faust, Phys. Rev., 36, 161 ; 1930. Prins, Z. Phys., 69, 618 ; 1931. O'Bryan and Skinner, Phys. Rev., 44, 602 ; 1933.
See Morand and Hautot, Comptes Rendus, 195, 1070 ; 1932 ; 197, 521 ; 1933. Prins, Z. Phys., 81, 507 ; 1933. F. C. and L. P. Chalklin, Phil. Mag. (in the press).
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CHALKLIN, F. Fine Structure of the Kα Line of Beryllium. Nature 133, 293–294 (1934). https://doi.org/10.1038/133293b0
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DOI: https://doi.org/10.1038/133293b0
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