I have no idea how lethal/strong space radiation is, but i do have an idea that most of it is from the sun perhaps? I also know that the prime factor to deflect this radiation is magnetic field and the ozone layer. I think the magnetic field handles only particle radiation and atmosphere handles the e/m radiation? idk. What i wish to ask if there is a naked human out in space, where should i locate a personal magnet (to optimize strength/protection) and how strong should it be to protect from that part of radiation which can be deflected by the magnetic field efficiently?