Letter | Published:

Specular Reflection of X-rays

Nature volume 114, pages 8889 (19 July 1924) | Download Citation



LORENZ has developed the approximate expression for the index of refraction of X-rays where “n” is the number of electrons per unit volume and “e” and “m” refer to the charge and mass of the electron. This expression would indicate that at very small angles X-rays should be totally reflected by the refracting medium. The critical glancing angle is given by the formula. A. H. Compton in the June 1923 issue of the Philosophical Magazine shows that he finds this reflection and that it is truly total reflection. His work was done by the ionisation chamber method.

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  1. Physics Laboratory, Washington University, St. Louis, U.S.A., June 13.

    • H. E. STAUSS


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