Whether it is possible to be protected from radiation on Mars?

Now many space agencies send missions to Mars for studying of environment, the atmosphere and geological history, it seems probable that flights with crew not far off. Actually, National administration office on aeronautics and space research, and China clearly let know that intend to send missions to Mars by the beginning of the 2030th years which will come to the end with creation of land habitat. In one of the last researches the team from Nauchny higher education institution the space researches "Blue Marble" studied as various materials can be used for creation of radiation protective structures. Among them there were materials...