The current research investigates the neutron shielding features of polyethylene-7% B and Al-30 wt% B4C composites fabricated via hot-press sintering. The practical analysis was conducted via Neutron radiography and Monte Carlo N-Particle (MCNP) simulation. The results illustrated that Al-30 wt% B4C with 5 mm thickness has equivalent neutron absorption properties with 14 mm thickness of PE-7% B. Composites with higher density and homogenous distribution of B4C have better neutron shield properties. Al-30 wt% B4C composite fabricated at 650 °C has a higher neutron absorption property. Experimental and simulation findings confirmed each other at lower thicknesses and Al-30 wt% B4C has better neutron shielding than PE-7% B. At thicknesses over 1 cm, the cross-sectional area of polyethylene-7% B and Al-30 wt% B4C composites are near each other. By increasing the thicknesses of composites, the relative total dose reduction and the shield properties of composites are enhanced.
