with this sphere " 5% Borated Polyethylene - High Density" we will have the most piece of cake nuclear IED ever...you would have the mix matter, inside a mirror silicon carbonate pyramid (with or without a record machine playing The Wall) , a little nucleus inside generator of neutrons, RDX out side, and 450vx5 power source...and...we will have little Hiroshima...don't you think preparing potassium chlorate is much more difficult?......all together...this bomb nuclear IED, called by the "system" the dirty bomb, that they never though was possible to build ...releases an amount of more that 120 million MV ...that releases a temperature superior to 9000.º C....on a range of 2 miles square, spreading for another 30 km...as I said to you, this will make an energy blackout, for long, long time, in half Europe

http://www.shieldwerx.com/poly-based-shielding.html