Comments on Shielding by the Lead Shot Method

Radiation shielding composites using thermoplastic polymers mouldable at low temperature

“…Maruyama et al [10] point out that by using a mixture of shot sizes, even higher packing fractions may be attained. Specifically, with a mixture of two sizes having a ratio of diameters of 0.22 and a mixing ratio of between 1:2-1.4 larger to smaller pellets, a packing fraction of 0.72 was obtained.…”