Abstract It is desirable to examine the characteristics of radiation and dosimetric of radionuclide neutron sources. In this work, the ambient dose equivalent (H*(10)) was calculated based on the conversion coefficient from different reports with the simulation of various types of radionuclide neutron sources by Monte Carlo code MCNPX2.6. The ambient dose equivalent was obtained for neutron and gamma emitted from these sources, separately. Then, each dose was parameterized as a function of emission rate and distance from the source, to estimate the dose for any strength and each distance. Furthermore, using simulation of the ICRU spherical phantom irradiated by radionuclide neutron sources, the neutron and photon absorbed doses were calculated at a depth of 10 mm in this phantom, and then they were compared with the ambient dose equivalent for neutrons and photons. From this comparison, the effective quality factor of these sources was estimated.

中文翻译：

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一种确定具有特定常数和有效质量因子的放射性核素中子源剂量学特性的方法

摘要 对放射性核素中子源的辐射特性和剂量学特性进行研究是十分必要的。在这项工作中，环境剂量当量（H*（10））是根据不同报告的转换系数，通过蒙特卡罗代码MCNPX2.6模拟各种类型的放射性核素中子源计算得出的。分别获得从这些源发射的中子和伽马的环境剂量当量。然后，将每个剂量参数化为发射速率和距源距离的函数，以估计任何强度和每个距离的剂量。此外，利用放射性核素中子源辐照 ICRU 球形体模的模拟，计算了该体模 10 mm 深度处的中子和光子吸收剂量，然后将它们与中子和光子的环境剂量当量进行比较。从这个比较中，估计了这些来源的有效质量因子。