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  • 1 Institute of Hygiene and Epidemiology Centre of Radiation Hygiene Prague Czechoslovakia
  • 2 Technical University Prague Faculty of Nuclear Science and Physical Engineering Prague Czechoslovakia
  • 3 Technical University Budapest Research Reactor Department Budapest Hungary
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The properties of miniature therapeutic silicon photodiodes in a 14.7 MeV field are outlined in the paper. The responses of the photodiode to the tissue dose rate of both the photons and 14.7 MeV neutrons are given. The decrease in sensitivity due to radiation damage is specified for a n- field.