Advanced radiation protection?

In order to have radiation-free nuclear reactions (the purported LENRs) it would be necessary that ``...one could fractionate large MeV quanta into millions or even billions of smaller quanta.'' (P. L. Hagelstein, Infinite Energy, issue 112, page 12, 2013). See also my sci.physics.fusion post of 1 April 2004 and Kan. Sci. Teacher, vol. 7, 12, 1990. If one had such a mechanism it might be even more important for use as general radiation shielding.