Despite guidelines and the past 30 years of research, there has been little progress on fully defining or mitigating the space radiation β’οΈ risk to human crew. Schwadron et al. project that Galactic Cosmic Ray fluences will be substantially higher π during the next solar cycles leading to increased background #radiation exposure and, subsequently, as much as a 20% decrease in the allowable safe days in space (outside of #LEO) https://www.nature.com/articles/s41526-018-0043-2
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#Radiation β’οΈ shielding is a mandatory element in the design of an integrated solution to mitigate the effects of radiation during long #DeepSpace voyages for human exploration. #Kevlar has radiation shielding π‘οΈ performances comparable to Polyethylene, reaching a dose rate reduction of 32 Β± 2% and a dose equivalent rate reduction of 55 Β± 4% (for a shield of 10 g/cm2). https://www.nature.com/articles/s41598-017-01707-2