Dose coefficients for children and young adolescents exposed to external neutron fields

Journal of Radiological Protection : Official Journal of the Society for Radiological Protection
Keith GriffinChoonsik Lee

Abstract

The risks associated with exposure to external fields of ionising radiation are important to quantify in order to provide guidance towards public and worker protection. In Publication 116 of 2010, the International Commission on Radiological Protection (ICRP) published adult male and female fluence-to-dose coefficients (henceforth referred to as dose coefficients) for external exposures to six types of idealised neutron fields. However, ICRP 116 dose coefficients are not appropriate for applications involving children due to their smaller body weight and stature. Our current work details dose coefficient calculations for children and young adolescents using the UF-NCI pediatric hybrid phantoms at all neutron energies considered in ICRP 116 (0.001 eV to 10 GeV); those dose coefficients with energy up to 150 MeV are discussed. The hybrid UF-NCI phantoms are divided into five separate age groups: newborn, 1, 5, 10, and 15 years. For these phantoms, we calculated dose coefficients for the six idealised neutron fields for 28 organs, two bone tissues, and the overall whole body effective dose. All calculations were performed using the MCNP6 radiation transport code. To validate our methodology, we first calculated dose coefficients f...Continue Reading

References

Jul 17, 2003·Radiation Protection Dosimetry·D P ChouB J Chang
Dec 19, 2009·Physics in Medicine and Biology·Choonsik LeeWesley E Bolch
Oct 11, 2011·Physics in Medicine and Biology·Amir A BahadoriWesley E Bolch
Apr 1, 2010·Annals of the ICRP·N Petoussi-HenssUNKNOWN International Commission on Radiation Units and Measurements
Jan 25, 2017·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Lienard A ChangChoonsik Lee

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Citations

May 10, 2019·Physics in Medicine and Biology·Alireza Vejdani-Noghreiyan, Atiyeh Ebrahimi-Khankook
Jun 4, 2021·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Chansoo ChoiChan Hyeong Kim
Jul 9, 2021·Radiation Research·Andrew RosenstromShaheen Dewji

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