Abstract
FOR more than a year we have been engaged in investigating the action of neutrons and rays: (a) in affecting the stability of colloids, and (b) in promoting chemical reactions. As sources of radiation we have used platinum containers filled with radium sulphate, or radium emanation sealed into glass tubes surrounded by a few millimetres of lead. Neutrons were obtained from sources similar to these to which metallic beryllium had been added. Since all the neutron sources used emitted rays, every titration was carried out in triplicate on (1) a non-irradiated control; (2) a specimen irradiated by rays alone; (3) a specimen irradiated by neutrons and rays from the same or an equal source. The strengths of the sources ranged from 30 mC to 150 mC and the periods of irradiation from a few hours to two weeks.
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HOPWOOD, F., PHILLIPS, J. Chemical Action caused by Neutrons and Gamma Rays and the Effects of these Agents on Colloids. Nature 136, 1026 (1935). https://doi.org/10.1038/1361026a0
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DOI: https://doi.org/10.1038/1361026a0
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