New applications and developments in the neutron shielding

Fatma Aysun Uğur,A Aydin,E Tel,A Kaplan,I.H Sarpün,B Demir

doi:10.1051/epjconf/201715401022

Abstract

Shielding neutrons involve three steps that are slowing neutrons, absorption of neutrons, and impregnation of gamma rays. Neutrons slow down with thermal energy by hydrogen, water, paraffin, plastic. Hydrogenated materials are also very effective for the absorption of neutrons. Gamma rays are produced by neutron (radiation) retention on the neutron shield, inelastic scattering, and degradation of activation products. If a source emits gamma rays at various energies, high-energy gamma rays sometimes specify shielding requirements. Multipurpose Materials for Neutron Shields; Concrete, especially with barium mixed in, can slow and absorb the neutrons, and shield the gamma rays. Plastic with boron is also a good multipurpose shielding material. In this study; new applications and developments in the area of neutron shielding will be discussed in terms of different materials.

Highlights

Penetrating radiation serves many useful purposes, but it can damage or destroy living organism, and these effects must be considered when radiation is used
3) Absorption of gammas due to neutron interaction; Gamma rays are produced by neutron retention on the neutron shield, inelastic scattering, and decay of activation products
For radiation sources emitting neutron and gamma, materials such as water, concrete, mixed concrete with barium, lead tunnels can be used as shielding material

Summary

Introduction

Penetrating radiation serves many useful purposes, but it can damage or destroy living organism, and these effects must be considered when radiation is used. Ionized radiation has several forms: Alpha, beta, neutron particles and gamma, X-rays. Beta and neutron are particle type radiations, X and gamma are electromagnetic waves with high energies. Concrete is the most common material used for shielding in nuclear facilities such as particle accelerators, medical hospitals containing radioactive sources and radiation generating equipment and especially nuclear power stations and storing radioactive waste [2].

Results

Conclusion