OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1963 · 16 citations · 0 references
Natural SciencesPhysicsNuclear PhysicsRadiation MeasurementRadiation PhysicsBackground Radiation MeasurementBeta DecayNuclear DecayRadiation Track StructureRadioactive DecayBeta CountingMicroscopic Grain CountingRadiometric Analysis
Results of an investigation into the possibilities for a quantitative interpretation of autoradiograms on the basis of grain counting or track counting are presented. The relation between track length, number of grains, and initial energy of the beta particle is studied, and the blackening produced by a point source of a beta emitter, e.g. carbon14, surrounded by nuclear emulsion is described in terms of the distribution of grains in space. It is shown how an analysis of this type can be carried out for any pure beta emitter. However, the present measurements are confined to beta partilces of up to 400 kev. (auth)