Hi, Reading Rossi's patent it seems Boron & Lead are used not just for shielding but to absorb the energy from the radiation. What I was wondering if there is any specific radiation that would need lead vs a cheaper metal (and thicker) or even concrete to absorb the energy.
So is lead essential? And though we have enough Nickel for many years of E-cat energy, do we have enough Boron & Lead? Colin
