Corpus ID: 214802724

Shielded dumbbell L5 settlement

  title={Shielded dumbbell L5 settlement},
  author={Pekka Janhunen},
  journal={arXiv: Popular Physics},
  • Pekka Janhunen
  • Published 2020
  • Physics
  • arXiv: Popular Physics
  • We present a two-sphere dumbbell configuration of a rotating settlement at Earth-Moon L5. The two-sphere configuration is chosen to minimize the radiation shielding mass which dominates the mass budget. The settlement has max 20 mSv/year radiation conditions and 1 g artificial gravity. If made for 200 people, it weighs 89000 tonnes and provides 60 m$^2$ of floorspace per person. The radiation shield is made of asteroid rock, augmented by a water layer with 2 % of the mass for neutron moderation… CONTINUE READING