Innovative neutron shielding materials composed of natural rubber-styrene butadiene rubber blends, boron oxide and iron(III) oxide

International Nuclear Science and Technology Conference 2014

Jumpee, C.^1 ; Wongsawaeng, D.^1

Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok

10330, Thailand^1

关键词: Alternating layers;    Monte carlo n particles;    Neutron shielding;    Neutron shielding materials;    Shielding efficiency;    Shielding materials;    Styrene butadiene rubber;    Styrene butadiene rubber blends;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/611/1/012019/pdf
DOI  :  10.1088/1742-6596/611/1/012019

来源: IOP

【 摘 要 】

Optimized flexible and lightweight neutron shielding materials were designed using the Monte Carlo N-Particle (MCNP) code. Thicknesses of 10 mm and 100 mm were tested for neutron shielding performances. Simulation results indicated that the 10 mm shielding material of natural rubber (NR) and styrene butadiene rubber (SBR) blend (1:1) with 60 part per hundred rubber (phr) boron oxide (B2O3) and 100 mm shielding material with four alternating layers of NR with 100 phr iron (III) oxide (Fe2O3) and of NR and SBR blend (1:1) with 10 phr B2O3were most suitable for thermal neutron shielding and all-energy neutron shielding, respectively. Experimental results verified the shielding efficiency of these optimal designs and ease of fabrication.