Calculation of indoor effective dose factors in ORNL phantoms series due to natural radioactivity in building materials.
In this paper the effective dose in the age-dependent ORNL phantoms series, due to naturally occurring radionuclides in building materials, was calculated. The absorbed doses for various organs or human tissues have been calculated. The MCNP-4B computer code was used for this purpose. The effective dose was calculated according to ICRP Publication 74. The obtained values of dose conversion factors for a standard room are: 1.033, 0.752 and 0.0538 nSv h-1 per Bq kg-1 for elements of the U and Th decay series and for the K isotope, respectively. The values of effective dose agreed generally with those found in the literature, although the values estimated here for elements of the U series were higher in some cases.
Krstic
D
D
University of Kragujevac, Faculty of Science, Department of Physics, R. Domanovic 12, Kragujevac 34000, Serbia. nikezic@kg.ac.rs
Nikezic
D
D
D000328:Adult; D000396:Air Pollutants, Radioactive; D016902:Air Pollution, Indoor / Q000032:analysis; D002648:Child; D003252:Construction Materials; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D019047:Phantoms, Imaging; D011197:Potassium Radioisotopes / Q000032:analysis; D011834:Radiation Monitoring / Q000379:methods*; D011851:Radioactivity; D013910:Thorium / Q000032:analysis; D014501:Uranium / Q000032:analysis
D000396:Air Pollutants, Radioactive; D011197:Potassium Radioisotopes; D014501:Uranium; D013910:Thorium