Scattering of X-Rays by Bound Electrons


IN two letters to NATURE (May 17 and June 7), Dr. B. B. Ray announces an interesting experimental observation on what he calls “Scattering of X-rays by Bound Electrons”. He allowed radiation of copper to pass through soot and air, and found that the photograph of the transmitted beam showed, besides the primary beam, lines of lesser frequency, namely, vv', where v is the characteristic. K-frequency of carbon, oxygen, and nitrogen (matter traversed). The nickel radiation also shows a similar modification, the quantum being deprived of a part of its energy corresponding to the K-radiation of the substance traversed.

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BHARGAVA, S. Scattering of X-Rays by Bound Electrons. Nature 126, 398–399 (1930).

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