Investigation of gamma radiation shielding capability of two clay materials
Investigation of gamma radiation shielding capability of two clay materials
复制标题
DOI：
10.1016/j.net.2018.05.003
复制
发表时间：
2018-08-01
影响因子：
2.7
通讯作者：
Balogun, F. A.
中科院分区：
文献类型：
--
作者：
Olukotun, S. F.;Gbenu, S. T.;Balogun, F. A.
两种粘土材料的γ辐射屏蔽性能（球粘土和高岭土）产于尼日利亚西南部（7.49 ° N，4.55 ° E）的衰减系数进行了研究，从理论和实验上测定了粘土材料在光子能量为609.31，1120.29，1173.20，Bi-214矿和Co-60点源发射的1238.11、1332.50和1764.49 keV。利用粒子诱发X射线发射（PIXE）元素分析技术获得的粘土材料的元素组成作为WinXCom软件的输入数据，从理论上估算了质量衰减系数。而伽马射线透射实验使用超纯锗（HPGe）谱仪探测器，以实验方式确定样品的质量衰减系数，mu/rho（cm（2）g（-1））。实验结果与WinXCom软件的理论计算结果吻合较好。线性衰减系数（mu），半值层（HVL）和平均自由程（MFP）也使用所获得的mu/rho值的研究样品进行了评价。所选择的粘土材料的GRSC已与其他研究的屏蔽材料进行了比较。通过对粘土样品的可用性、热化学稳定性和保水能力等各种因素的认识，可以分析材料的GRSC功效。(C)2018年韩国核学会，由Elsevier Korea LLC出版。
The gamma radiation shielding capability (GRSC) of two clay-materials (Ball clay and Kaolin)of Southwestern Nigeria (7.49 degrees N, 4.55 degrees E) have been investigated by determine theoretically and experimentally the mass attenuation coefficient, mu/rho (cm(2) g(-1)) of the clay materials at photon energies of 609.31,1120.29, 1173.20, 1238.11, 1332.50 and 1764.49 keV emitted from Bi-214 ore and Co-60 point source. The mass attenuation coefficients were theoretically evaluated using the elemental compositions of the claymaterials obtained by Particle-Induced X-ray Emission (PIXE) elemental analysis technique as input data for WinXCom software. While gamma ray transmission experiment using Hyper Pure Germanium (HPGe) spectrometer detector to experimentally determine the mass attenuation coefficients, mu/rho (cm(2) g(-1)) of the samples. The experimental results are in good agreement with the theoretical calculations of WinXCom software. Linear attenuation coefficient (mu), half value layer (HVL) and mean free path (MFP) were also evaluated using the obtained mu/rho values for the investigated samples. The GRSC of the selected clay-materials have been compared with other studied shielding materials. The cognizance of various factors such as availability, thermo-chemical stability and water retaining ability by the claysamples can be analyzed for efficacy of the material for their GRSC. (C) 2018 Korean Nuclear Society, Published by Elsevier Korea LLC.