I wonder if any of these smart grad student types have thought of generating an EM field like our geomagnetic field to repulse radiation. Maybe if a central unit would be too expensive, perhaps personal units... I also wonder if some of that energy could be harnessed or utilized...,(reply>), People have thought of it, but if I recall from my cursory research on the subject, it ends up being quiet expensive and complicated to implement. You'd be spending lots of valuable energy on the field generators, plus the extra mass that such solenoids would require means compromise in other aspects of ship design. Then you'd likely need some shielding for the onboard electronics. Headache.<br>Maybe with superconductors this becomes more feasible,(reply>), Never happen