title: Determining organ dose conversion coefficients for external neutron irradiation by using a voxel mouse model.
abstract: A set of fluence-to-dose conversion coefficients has been calculated for neutrons with energies <20 MeV using a developed voxel mouse model and Monte Carlo N-particle code (MCNP), for the purpose of neutron radiation effect evaluation. The calculation used 37 monodirectional monoenergetic neutron beams in the energy range 10(-9) MeV to 20 MeV, under five different source irradiation configurations: left lateral, right lateral, dorsal-ventral, ventral-dorsal, and isotropic. Neutron fluence-to-dose conversion coefficients for selected organs of the body were presented in the paper, and the effect of irradiation geometry conditions, neutron energy and the organ location on the organ dose was discussed. The results indicated that neutron dose conversion coefficients clearly show sensitivity to irradiation geometry at neutron energy below 1 MeV.
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China.
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China.
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Xie
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China.
authors.forename: Decheng
authors.initials: D
authors.lastname: Qu
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Ning
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China.
authors.forename: Hongmei
authors.initials: H
authors.lastname: Zhou
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Pan
authors.affiliation: Department of Radiation Protection and Health Physics, Beijing Institute of Radiation Medicine, Taiping Road 27, Haidian District, Beijing 100850, China amms_yanggs@163.com.
authors.forename: Guoshan
authors.initials: G
authors.lastname: Yang
mesh_terms: D065638:Absorption, Radiation; D000818:Animals; D008297:Male; D051379:Mice; D023421:Models, Animal; D009502:Neutrons; D009928:Organ Specificity / Q000528:radiation effects*; D011829:Radiation Dosage
keywords: Monte Carlo; neutron dose; organ dose conversion coefficients; voxel mouse model