Proceedings of the Physico-Mathematical Society of Japan. 3rd Series
Online ISSN : 2185-2707
Print ISSN : 0370-1239
ISSN-L : 0370-1239
Excitation of Gamma-Rays by Fast Neutrons of Different Energy, II
Itaru NONAKA
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1944 Volume 26 Pages 66-70

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Abstract

Atomic cross sections σγ's of Mg, Co and Bi for gamma-ray excitation by fast neutrons of different energies from 2.25 to 2.90MeV were determined. In all three cases anormalics were observed in the cross section energy curves. In the case of Mg, the anormaly observed by MACPHAIL in the total cross section σt can be explained almost entirely by that in σγ observed in the present experiment. As Co consists of nearly, and Bi of perfectly single isotope, the results are suited for comparison with theoretical calculations

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