title: Soft tissue dosimetry of radium in humans--I. Alpha-particle doses from the decay of 226Ra and 228Ra in soft tissues.
abstract: Estimates are presented of the alpha particle doses accumulated by individual organs and soft tissues of Reference Man in a 50-yr period following single intakes of 226Ra and 228Ra. With no decay of 226 Ra daughter products in soft tissue, the median dose is 67 mrad per muCi 226Ra intake. With no translocation of 228Ra daughter products, the dose per muCi 228Ra intake is 5.77 times the corresponding value for 226Ra. Biological variability introduces substantial uncertainty when applying these estimates to a particular individual.
mesh_terms: D000512:Alpha Particles; D006801:Humans; D008433:Mathematics; D011829:Radiation Dosage; D011874:Radiometry; D011883:Radium / Q000032:analysis* / Q000378:metabolism; D012015:Reference Standards; D013997:Time Factors; D014018:Tissue Distribution
chemical_list: D011883:Radium