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Gamma attenuation, dose rate and exposure/absorption buildup factors of apatite–wollastonite (AW) ceramic system
Radiation Physics and Chemistry ( IF 2.9 ) Pub Date : 2024-03-01 , DOI: 10.1016/j.radphyschem.2024.111658
Norah Alomayrah , Marzoqa M. Alnairi , Z.A. Alrowaili , B. Alshahrani , Mine Kırkbınar , I.O. Olarinoye , Halil Arslan , M.S. Al-Buriahi

Apatite-wollastonite (AW) is an important biomaterial useful in clinical practice for tissue engineering and other applications. In this research paper, AW and BO-doped AW glass ceramics (GCs) were reported and investigated deeply by means of their ability to attenuate gamma-photons. The studied samples denoted by AW, AW-10B, and AW-20B as the BO content from 0 to 20 mol% with the step of 10. Using FLUKA and other theoretical approaches, photon interaction parameters for narrow and broad beam transmission through the AW GCs were estimated for the 15 keV–15 MeV energy range. Also, the density of the GCs increased as the BO content increased. The mass attenuation coefficients were found to be within the ranges 0.0231–13.5659 cm/g, 0.0225–12.3561 cm/g, and 0.0220–11.1079 cm/g for AW, AW-10B, and AW-20B, respectively. The effective atomic number of the GCs fell within the range 11.04–17.26, 10.88–17.01, and 10.21–16.72, respectively. As the doping concentration of BO increased, the gamma energy that the AW GCs were able to absorb decreased. The addition of BO compromised the photon shielding competence of AW in both narrow beam and broad beam scenarios. The GCs had better photon-absorbing competence than some existing gamma-photon shields. The GCs may thus be used as photon absorbers in clinical practice or in other nuclear applications.

中文翻译:

磷灰石-硅灰石(AW)陶瓷系统的伽马衰减、剂量率和暴露/吸收累积因子

磷灰石-硅灰石(AW)是一种重要的生物材料,可用于组织工程和其他应用的临床实践。在这篇研究论文中,报告了 AW 和 BO 掺杂的 AW 玻璃陶瓷 (GC),并对其衰减伽马光子的能力进行了深入研究。研究的样品用AW、AW-10B和AW-20B表示,BO含量从0到20 mol%,步长为10。利用FLUKA和其他理论方法,通过AW窄和宽光束传输的光子相互作用参数GC 的能量范围估计为 15 keV–15 MeV。此外,GC 的密度随着 BO 含量的增加而增加。 AW、AW-10B 和 AW-20B 的质量衰减系数分别在 0.0231–13.5659 cm/g、0.0225–12.3561 cm/g 和 0.0220–11.1079 cm/g 范围内。 GC的有效原子序数分别在11.04-17.26、10.88-17.01和10.21-16.72范围内。随着BO掺杂浓度的增加,AW GC能够吸收的伽马能量减少。 BO 的添加损害了 AW 在窄光束和宽光束情况下的光子屏蔽能力。 GC 比一些现有的伽马光子屏蔽具有更好的光子吸收能力。因此GC可以在临床实践或其他核应用中用作光子吸收剂。
更新日期:2024-03-01
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