Behrens R
Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany.
Radiat Prot Dosimetry. 2013 Jul;155(2):224-35. doi: 10.1093/rpd/ncs325. Epub 2012 Nov 29.
In this work, conversion coefficients from electron fluence to absorbed dose to the eye lens were calculated using Monte Carlo simulations based on a detailed stylised eye model and a very simple but whole body phantom. These data supersede and complement data published earlier based on the simulation of only a single stylised eye. The new data differ from the old ones by not more than 3, 4, 7 and 16 % for angles of radiation incidence of α=0°, 15°, 30° and 45°, respectively, due to the inclusion of the whole body phantom. The data presented in the present work also complement those of a recent report of the International Commission on Radiological Protection (ICRP) (ICRP Publication 116), where conversion coefficients from electron fluence to absorbed dose to the lens of the eye are shown for solely 0°, 180° and isotropic radiation incidence (but for a much broader range of energies). In this article, values are provided for angles of incidence of 0° up to 180° in steps of 15° and for rotational geometry; no systematic deviation was observed from the values given in ICRP Publication 116 for 0° (based on the application of a bare eye) and 180° (based on the application of a voxel whole body phantom). Data are given for monoenergetic electrons from 0.1 up to 10 MeV and for a broad parallel beam geometry in vacuum.
在这项工作中，基于一个详细的理想化眼部模型和一个非常简单的全身模型，利用蒙特卡罗模拟计算了从电子注量到晶状体吸收剂量的转换系数。这些数据取代并补充了早期仅基于单个理想化眼睛模拟发布的数据。由于包含了全身模型，对于辐射入射角α = 0°、15°、30°和45°，新数据与旧数据的差异分别不超过3%、4%、7%和16%。本工作中给出的数据还补充了国际放射防护委员会（ICRP）（ICRP出版物116）最近一份报告中的数据，该报告给出了仅针对0°、180°和各向同性辐射入射角（但能量范围更广）从电子注量到眼部晶状体吸收剂量的转换系数。在本文中，给出了入射角从0°到180°以15°为步长以及旋转几何形状下的值；对于ICRP出版物116中给出的0°（基于裸眼应用）和180°（基于体素全身模型应用）的值，未观察到系统偏差。给出了0.1至10 MeV单能电子在真空中宽平行束几何形状下的数据。
