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Showing papers by "Ugo Fano published in 1949"

Journal Article•DOI•
Penetration and Diffusion of Hard X-Rays through Thick Barriers. I. The Approach to Spectral Equilibrium

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Hans A. Bethe1, Ugo Fano2, P. R. Karr2•
Cornell University1, National Institute of Standards and Technology2
15 Aug 1949-Physical Review
TL;DR: When some of the secondary components of a complex radiation are barely softer than the primary, the process of formation and decay of these components alone governs the approach to equilibrium, and it is then possible to determine the asymptotic trend of the total radiation intensity at great depths of penetration as mentioned in this paper.
Abstract: When some of the secondary components of a complex radiation are barely softer than the primary, the process of formation and decay of these components alone governs the approach to equilibrium. It is then possible to determine the asymptotic trend of the total radiation intensity at great depths of penetration. Under broad assumptions, this trend is ${x}^{{K}_{0}}\mathrm{exp}(\ensuremath{-}{\ensuremath{\mu}}_{0}x)$.

9 citations