Napier I D, Locke J, Grubb S R, Picton D J
Defence Science and Technology Laboratory, Environmental Sciences Department, Porton Down, Salisbury, Wiltshire, UK.
J Radiol Prot. 2010 Dec;30(4):717-33. doi: 10.1088/0952-4746/30/4/006. Epub 2010 Dec 8.
The potential operating environment following an attack using CBRN (chemical, biological, radiological, nuclear) materials has led to design work aiming to reduce the physiological burden of protective clothing, while maintaining satisfactory levels of chemical protection. In this paper, we review the radiological protection provided by these lighter, thinner clothing options. Monte Carlo modelling has been used to determine the contribution to skin dose from both beta and gamma radiation from four sources, each with different emission characteristics. The protection factors for eight materials have been characterised in terms of the surface density of each material (ranging from 50 to 482 g m⁻²). As protective clothing is made lighter and more breathable, the radiological protection is significantly reduced. This work has provided quantitative analysis of the magnitude of this reduction. A simple algorithm has been derived which can be used to estimate the protection factor for any clothing, on the basis of the surface density of the material (within the range of materials studied). These results show the need for skin radiation exposure to be considered by protective suit designers and CBRN response planners.
使用化学、生物、放射、核（CBRN）材料发动袭击后的潜在操作环境，促使人们开展设计工作，旨在减轻防护服的生理负担，同时保持令人满意的化学防护水平。在本文中，我们回顾了这些更轻便、更轻薄的服装选项所提供的放射防护。蒙特卡罗建模已被用于确定来自四个具有不同发射特性的源的β射线和γ射线对皮肤剂量的贡献。已根据八种材料的表面密度（范围为50至482 g m⁻²）对其防护系数进行了表征。随着防护服变得更轻便、透气性更好，放射防护会显著降低。这项工作对这种降低的幅度进行了定量分析。已推导出一种简单算法，可用于根据材料的表面密度（在所研究的材料范围内）估算任何服装的防护系数。这些结果表明，防护服设计师和CBRN应急响应规划者需要考虑皮肤辐射暴露问题。
