In the present study, nanocomposites with different ratios of NiO and Co₃O₄ (x= 0.3, 0.5, and 0.7) have been prepared via microwave oven and characterized using XRD. FLUKA code has been used to estimate the values of the mass attenuation coefficient (μ_m) for all samples. From the measurement, we found that when the thickness of the samples increases, the gamma transmission values ​​decrease. Besides, the μ_m values increase as the Co₃O₄ content increase from 0.3 to 0.7 %. At selected photon energy, the HVL, TVL, and MFP values decrease with increasing Co₃O₄ concentrations. At low energies (0.1-0.5 MeV), the linear decreasing trend in MAC values indication that photoelectric effect (PEA) (∝ 1/E^3.5) dominance over this region. Afterward, at medium energy regions (0.5-1.33 MeV), the decrements in MAC values are insignificant as the Compton scattering (CS) (∝ 1/E) phenomenon dominates. As a conclusion, CoNi3 has superior effectiveness as a shielding material.

在本研究中，已通过微波炉制备了具有不同比例的NiO和Co ₃ O ₄（x = 0.3、0.5和0.7）的纳米复合材料，并使用XRD对其进行了表征。FLUKA代码已用于估计所有样品的质量衰减系数（_μm）的值。从测量中我们发现，当样品厚度增加时，伽马透射率值减小。此外，_μm值随着Co ₃ O ₄含量从0.3％增加到0.7％而增加。在选定的光子能量下，HVL，TVL和MFP值会随着Co ₃ O _4的增加而降低浓度。在低能量（0.1-0.5 MeV）下，MAC值呈线性下降趋势，表明该区域的光电效应（PEA）（∝ 1 / E ^3.5）占主导地位。之后，在中等能量区域（0.5-1.33 MeV），由于康普顿散射（CS）（∝ 1 / E）现象占主导地位，MAC值的减小不明显。综上所述，CoNi3作为屏蔽材料具有卓越的功效。