relative biological effectiveness (RBE)


inverse ratio of the absorbed dose from one radiation type to that of a reference radiation that produces the same radiation effect


  • NOTE 1 The radiation type is usually 60Co or 200-250 keV X-rays.
  • NOTE 2 In contrast to the weighting or quality factors, RBE is an empirically founded measurable quantity. For additional information on RBE, see ECSS-E-HB-10-12 Section 10.2.2.
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