Abstract

This study aims to calculate the air Kerma to personal dose equivalent conversion coefficients \({H}_{p}(0.07)\) for mono-energetic photons from 0.015 to 10 MeV for angles of incidence from 0\({}^{\circ}\) to a 75\({}^{\circ}\) in steps of 15\({}^{\circ}\) using Monte Carlo (MC). In addition to this, we propose a new equation to perform an analytical fit of our Monte Carlo calculated conversion coefficients for photons. \({H}_{p}(0.07)/K_{air}\) values have been determined by two terms: in term of absorbed dose, according to the definition of this quantity, and also with the term of Kerma approximation. The results obtained are compared to those published in Joint report of ICRU and ICRP, 2017. A good agreement with reference data with a local difference less than \(2\%\) was observed.

中文翻译：

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Air-Kerma到个人剂量当量$$ \ mathbf {H} _ {\ mathbf {p}} \ mathbf {（0.07，\ boldsymbol {\ alpha}）} $$单能光子的转换系数

摘要

这项研究的目的是计算入射角从0 \（{}} {}到0.015到10 MeV的单能光子的空气Kerma到个人剂量当量转换系数\（{H} _ {p}（0.07）\）使用Monte Carlo（MC）以15 \（{} ^ {\ circ} \）的步长将\ circ} \）设置为75 \（{} ^ {\ circ} \）。除此之外，我们提出了一个新的方程来对我们的蒙特卡洛计算的光子转换系数进行解析拟合。\（{H} _ {p}（0.07）/ K_ {air} \）值由两个术语确定：就吸收剂量而言，根据该量的定义，还与克尔马近似有关。将获得的结果与ICRU和ICRP于2017年联合报告中发表的结果进行比较。观察到与参考数据的良好一致性，局部差异小于\（2 \％\）。