Intercomparison of JAERI Torso Phantom Lung Sets

• Published in: Radiation protection dosimetry 2000-01, Vol.88 (4), p.311-317
• Main Authors: Kramer, G.H., Hauck, B.M.
• Format: Article
• Language: English
• Subjects: Applied radiobiology (equipment, dosimetry...); Biological and medical sciences; Biological effects of radiation; Fundamental and applied biological sciences. Psychology; Tissues, organs and organisms biophysics
• ISSN: 0144-8420; 1742-3406
• DOI: 10.1093/oxfordjournals.rpd.a033049

During the course of an IAEA sponsored international in vivo intercomparison study using the JAERI phantom, the HML was able to compare photon counting statistics among thirteen lung sets made by three suppliers. Three sets consisted of sliced lungs with planar inserts. The others consisted of whole lung sets with the activity homogeneously distributed throughout the tissue substitute material. Radionuclides in the study were: natural uranium, 3% enriched uranium, 241Am, 238Pu, 239Pu, 152Eu, and 232Th. The study found that one 241Am lung set gave a counting efficiency 25% higher than expected. The sliced lung sets were in excellent agreement with the whole lung sets showing them to be good approximations for lung sets that have the radioactive material homogeneously distributed throughout the lung equivalent material. Agreement between lung sets at photon energies above 60 keV is within 12% (2s) and within 30% (2s) at lower photon energies.