title: Efficiency of whole-body counter for various body size calculated by MCNP5 software.
abstract: The efficiency of a whole-body counter for (137)Cs and (40)K was calculated using the MCNP5 code. The ORNL phantoms of a human body of different body sizes were applied in a sitting position in front of a detector. The aim was to investigate the dependence of efficiency on the body size (age) and the detector position with respect to the body and to estimate the accuracy of real measurements. The calculation work presented here is related to the NaI detector, which is available in the Serbian Whole-body Counter facility in Vinca Institute.
authors.affiliation: Faculty of Science,  University of Kragujevac, Kragujevac,  Serbia.
authors.forename: D
authors.initials: D
authors.lastname: Krstic
authors.forename: D
authors.initials: D
authors.lastname: Nikezic
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D049628:Body Size; D002138:Calibration; D002588:Cesium Radioisotopes / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D003198:Computer Simulation; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009010:Monte Carlo Method; D019047:Phantoms, Imaging; D011197:Potassium Radioisotopes / Q000032:analysis; D011834:Radiation Monitoring / Q000379:methods; D011874:Radiometry / Q000379:methods*; D055771:Serbia; D012984:Software; D014915:Whole-Body Counting / Q000379:methods*
chemical_list: D002588:Cesium Radioisotopes; D011197:Potassium Radioisotopes