Summary
On the basis of the above experimental and calculated data a graph was plotted which makes it possible to determine the number of neutrons radiated per unit time by a source made of a mixture of radium-mesothorium with beryllium, and the radium γ-equivalent of such a source with respect to time, for different initial content of radium and mesothorium in the source.
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Bak, M.A., Shimanskaya, N.S. Radium-mesothorium-beryllium source of neutrons. Meas Tech 3, 1057–1061 (1961). https://doi.org/10.1007/BF00988357
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DOI: https://doi.org/10.1007/BF00988357