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  • 1 Charles University Department of Biophysics and Nuclear Medicine, Faculty of General Medicine Prague Czechoslovakia
  • 2 Czech Technical University Department of Dosimetry and Application of Ionizing Radiation, Faculty of Nuclear and Physical Engineering Prague Czechoslovakia
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Preliminary phantom measurements were carried out for regional determination of calcium in the human forearm. Two paraffine phantoms /large and small/ were activated, either in the free space or surrounded by paraffine plates, by a252Cf neutron source. Differences between neutron flux densities in positions of the ulna and radius are discussed.