This paper explores the changes in the radiation quantity whole body effective dose equivalent ($\text{E}$) caused by galactic cosmic rays (GCRs) by varying position, geometry, material, and thickness of radiation shielding in order to determine possible launch characteristics of a vehicle design. The On-Line Tool for the Assessment of Radiation in Space (OLTARIS) was used to simulate deep space missions lasting 180 or 400 days with a mission radiation surrogate exposure limit of 150 $\text{mSv}$. Previous work used only spherical shielding; however, the shielding geometries investigated in this paper were right circular cylinders and spheres comprised of aluminum, polyethylene, liquid methane, water, and liquid hydrogen. Materials were evaluated individually, in multi-material pressure vessel mock-ups, and personal protection forms for individual astronauts. With single-material shielding, a single launch of shielding material to low Earth orbit (LEO) was possible for all materials for a 180 day mission, but insufficient for a 400 day mission. Multi-material and personal protection forms, as well, were found to be suitable for a 180 day mission, but not for a 400 day mission. Overall, no feasible designs in these analyses were able to meet the surrogate limit and protect an astronaut for 400 days.

本文探讨了辐射量全身有效剂量当量（$\text{Ë}$是由银河宇宙射线（GCR）引起的，它是通过改变辐射屏蔽层的位置，几何形状，材料和厚度来确定车辆设计的可能发射特性。用于评估空间辐射的在线工具（OLTARIS）用于模拟持续180或400天，任务辐射替代暴露极限为150的深空任务$\text{病毒}$。先前的工作仅使用球形屏蔽。然而，本文研究的屏蔽几何形状是由铝，聚乙烯，甲烷，液态甲烷，水和液态氢组成的直圆柱体和球形。在多材料压力容器模型中对材料进行了单独评估，并为单个宇航员提供了个人保护表格。使用单材料屏蔽时，对于180天任务的所有材料，都可以将屏蔽材料一次发射到低地球轨道（LEO），但对于400天任务而言，这是不够的。还发现，多种材料和个人保护形式也适用于180天的任务，但不适用于400天的任务。总体而言，这些分析中没有可行的设计能够达到替代极限并能保护宇航员400天。