The PERSEO project (PErsonal Radiation Shielding for intErplaetary missiOns) aimed at
studying a wearable innovative radiation protection system to mitigate the effects of
Solar Particle Events (SPE) on astronauts. SPE can be considered as related mainly to
deterministic effects of the cosmic radiation, with hazards to man arising for physical
doses above 2 Gy, when symptoms of the hematopoietic syndrome appear.