Gateway/L1 modeling and radiation analysis

The radiation environments at Earth-Lunar L1 are vastly different than what has been encountered before by humans, thus analysis of the predicted dose rates will need to be examined if the Gateway scenario is to be properly evaluated. The environments to be considered will be those of deep space. Recently a CAD model of the three vehicles of the Gateway concept was developed to define the shielding properties inherent to the vehicles. The models consist of approximately 50-100 components that describe the directional shielding provided for the astronaut. The goals were to provide simple models so that near real-time analysis can be performed while the solid angles subtended by the modeled elements were compatible with those of the true vehicle models. The analysis will consist of determining the variable dose though out each of the Gateway vehicles.