Gharissah Muh Syahrial, Ardiansyah Ardiansyah, Pauziah Sitti Rahmah, Muhammad Nurul Awaliyah, Rahmat Roni, Heryanto Heryanto, Tahir Dahlang
Department of Physics, Hasanuddin University, Makassar, 90245, Indonesia.
Sci Rep. 2022 Nov 10;12(1):19169. doi: 10.1038/s41598-022-23908-0.
Composite cement/BaSO/FeO/CuO with a thickness of 0.6 cm for various amounts of CuO: 2 wt%, 4 wt%, 6 wt%, and 8 wt% were successfully synthesized for the X-ray radiation shield. The bonding characteristics of composite and structural properties were determined using Fourier transform infrared spectra for the wavelength range of 4000-400 cm and X-ray diffraction with the range of 2θ from 25° to 50°, respectively. The shielding ability was measured using a mobile X-ray with an energy of 55, 66, and 77 keV for determining the mass and linear attenuation coefficient, electronic and atomic cross-section. These shield characteristics best agreement with theoretical calculation from the XCOM database for energy < 77 keV with half value layer (HVL) < 0.3 cm. The best shielding in this study indicated by the lowest HVL and MFP is composite for CuO 8 wt%. The HVL and MFP shows better values compared to the previous reported using composite rubber-based, indicated high potentials composite in this study for design new and efficient radiology rooms as an alternative concrete, especially for X-ray radiation, in the future.
成功合成了厚度为0.6厘米、含不同含量氧化铜（2重量%、4重量%、6重量%和8重量%）的复合水泥/BaSO/FeO/CuO用于X射线辐射屏蔽。分别使用波长范围为4000 - 400厘米的傅里叶变换红外光谱和2θ范围为25°至50°的X射线衍射来测定复合材料的结合特性和结构性能。使用能量为55、66和77千电子伏的移动X射线测量屏蔽能力，以确定质量和线性衰减系数、电子和原子截面。对于能量<77千电子伏且半值层（HVL）<0.3厘米的情况，这些屏蔽特性与XCOM数据库的理论计算结果最佳吻合。本研究中屏蔽效果最佳（由最低的HVL和平均自由程表示）的是含8重量%氧化铜的复合材料。与先前报道的基于复合橡胶的材料相比，HVL和MFP显示出更好的值，表明本研究中的复合材料在未来设计新型高效放射科房间作为替代混凝土（特别是用于X射线辐射）方面具有很高的潜力。
