Lead-free composite shielding material for neutron and gamma-ray

https://english.hf.cas.cn/nr/rn/202112/t20211217_294617.html

"novel composite materials are named modified-Gd2O3/B4C/HDPE... The optimal composite achieved as high as 98% neutron shielding rate with the thickness of 15 cm... superior to conventional boron-containing polyethylene for collimating shield which applied to neutron and gamma spectrum diagnostic system of Experimental Advanced Superconducting Tokamak (EAST). And it is expected to be promising radiation shielding material used in neutron-gamma mixed fields"

Related: Researchers develop neutron-shielding film for radiation protection

https://phys.org/news/2023-11-neutron-shielding.html