Abstract
The PERSEO project (PErsonal Radiation Shielding for intErplanetary missiOns), funded by the Italian Space Agency, has led to the development of a first technological demonstrator of a radiation shielding garment, to be used in a pressurized space habitat, that can be filled at need with on-board water and used for personal protection in case of solar particle events. The collaboration, including academic partners and companies active in space research and technology development, designed and manufactured the prototype that has been successfully tested on board the International Space Station by the European Space Agency astronaut Paolo Nespoli in November 2017, during the VITA mission. The effectiveness of the garment in terms of reduction of the radiation dose to sensitive organs (subject to the occurrence of short-term non-cancer effects following acute exposure) has been evaluated with Monte Carlo simulations with an anthropomorphic phantom. The successful outcome of the experimental session on board has demonstrated the practicality of use and wearability of the prototype, and, in perspective, the feasibility of a personal radiation shielding strategy, complementary to habitat shielding and based on the use of available resources, of fundamental importance also in view of future manned interplanetary missions.
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