Inter-Crew Shielding Against a Solar Particle Event in L1 2002-01-2335
All but a small fraction of human space radiation exposure has been in Low Earth Orbit (LEO) where significant protection from extraterrestrial ionizing radiation is provided as a result of its deflection in the Earth's magnetic field. The placement of a manned outpost at the L1 Lagrange Point could mark the first long-term venture into a “deep space” radiation environment, giving rise to the associated problems of long-term space exposure. One of the first issues to address is providing protection within an L1 station from a large solar particle event. A safe haven area could be used over the duration of the event or one may consider the sleep stations where it is already necessary to have added shielding. The surrounding bodies of other closely packed crewmembers in such a shelter are expected to provide a significant fraction of a crewmember's total shielding. We will use a recently developed immersive environment design tool to examine the protection provided by inter-crew shielding effects and evaluate the shielding factors as a function of crew size and relative location. The optimization of shield augmentation of the most sensitive crewmember will also be considered.