Frosio Thomas, Bertreix Philippe, Menaa Nabil, Thomas Samuel
Radiation Protection Group, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland.
Institut de Radioprotection et de Sûreté Nucléaire, 92260 Fontenay-aux-Roses, France.
J Radiol Prot. 2021 Aug 19;41(3). doi: 10.1088/1361-6498/ac057e.
Dose equivalent limits for single organs are recommended by the ICRP (International Commission for the Radiological Protection publication 103). These limits do not lend themselves to be measured. They are assessed by convoluting conversion factors with particle fluences. The Fluence-to-Dose conversion factors are tabulated in the ICRP literature. They allow assessing the organ dose of interest using numerical simulations. In particular, the literature lacks the knowledge of local skin equivalent dose (LSD) coefficients for neutrons. In this article, we compute such values for neutron energies ranging from 1 meV to 15 MeV. We use FLUKA, MCNP and GEANT4 Radiation transport Monte-Carlo simulation codes to perform the calculations. A comparison between these three codes is performed. These calculated values are important for radiation protection studies and radiotherapy applications.
国际放射防护委员会（ICRP第103号出版物）推荐了单个器官的剂量当量限值。这些限值不易测量。它们通过将转换因子与粒子注量进行卷积来评估。注量到剂量的转换因子列于ICRP文献中。它们允许使用数值模拟来评估感兴趣器官的剂量。特别是，文献中缺乏中子的局部皮肤当量剂量（LSD）系数的知识。在本文中，我们计算了能量范围从1毫电子伏特到15兆电子伏特的中子的此类值。我们使用FLUKA、MCNP和GEANT4辐射输运蒙特卡罗模拟代码进行计算。对这三个代码进行了比较。这些计算值对于辐射防护研究和放射治疗应用很重要。
