AN earlier communication 1 gave the results of measurements of the cross-section for the photo-disintegration of the deuteron by gamma-rays of 6.1 and 17.6 MeV. These measurements have been extended ...
THE ratio has been measured between the numbers of neutrons emitted from sources made by placing 300 mC. of radium–thorium in the centre of spheres of heavy water and beryllium respectively. These ...
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