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Evaluation of gamma ray attenuation properties of boron carbide (B4C) doped AISI 316 stainless steel: Experimental, XCOM and Phy-X/PSD database software
Materials Today Communications ( IF 3.7 ) Pub Date : 2021-09-20 , DOI: 10.1016/j.mtcomm.2021.102793
Kadir Gunoglu 1 , Hatice Varol Özkavak 1 , İskender Akkurt 2
Affiliation  

This study aimed to investigate the gamma-ray attenuation properties of AISI 316 stainless steel both experimentally and theoretically by doping different ratios of boron carbide. In the experimental measurements, a gamma spectroscopy system with a NaI(Tl) detector was used and 60Co, 137Cs radioactive sources were used as gamma sources. In addition, it was calculated theoretically using XCOM and Phy-X/PSD database software. With the help of both experimental and theoretical results obtained, the effect of adding boron carbide to AISI 316 stainless steel on the change of the linear attenuation coefficients (LAC, µ) of the steel was investigated. Experimental LAC results for 3 different gamma energies of steels have been checked with the calculated theoretical LAC results by XCOM database using the chemical contents and density of the steel samples. It has been observed that the experimental and theoretical results are compatible with each other. Also, by using experimentally obtained LACs, half and tenth value layer thickness, mean free path and radiation protection efficiency parameters were calculated. In addition to these parameters, parameters such as equivalent atomic number (Zeq), effective atomic number (Zeff), exposure accumulation factor (EBF) were theoretically determined in the energy range of 0.015–15 MeV for steel samples produced using the Phy-X / PSD software. From the experimental results obtained, as the ratio of boron carbide in AISI 316 stainless steel increases, LACs and radiation protection efficiency (RPE) values decrease. Other parameters, transmission speed, HVL, TVL and MFP values increased with increasing boron carbide (B4C) ratio. It can be said that different processes are effective in different energy regions for the Zeff, Zeq and EBF results obtained theoretically. From these data, it can be concluded that adding boron carbide to AISI 316 stainless steel reduces the steel's ability to attenuate gamma radiation.



中文翻译:

碳化硼 (B4C) 掺杂 AISI 316 不锈钢伽马射线衰减特性评估:实验、XCOM 和 Phy-X/PSD 数据库软件

本研究旨在通过掺杂不同比例的碳化硼,从实验和理论上研究 AISI 316 不锈钢的伽马射线衰减特性。在实验测量中,使用带有 NaI(Tl) 检测器的伽马光谱系统和60 Co, 137Cs 放射源用作伽马源。此外,使用XCOM和Phy-X/PSD数据库软件进行了理论计算。借助所获得的实验和理论结果,研究了在 AISI 316 不锈钢中添加碳化硼对钢的线性衰减系数 (LAC, µ) 变化的影响。使用钢样品的化学成分和密度,XCOM 数据库将 3 种不同伽马能量的钢的实验 LAC 结果与计算的理论 LAC 结果进行了检查。已经观察到实验和理论结果是相互兼容的。此外,通过使用实验获得的 LAC,计算了半值和十值层厚度、平均自由程和辐射防护效率参数。eq )、有效原子序数 (Z eff )、暴露累积因子 (EBF) 是在 0.015-15 MeV 能量范围内对使用 Phy-X / PSD 软件生产的钢样品进行理论上确定的。从获得的实验结果来看,随着AISI 316不锈钢中碳化硼比例的增加,LACs和辐射防护效率(RPE)值降低。其他参数、传输速度、HVL、TVL 和 MFP 值随着碳化硼 (B 4 C) 比率的增加而增加。可以说,对于Z eff , Z eq和理论上获得的EBF结果。从这些数据可以得出结论,在 AISI 316 不锈钢中添加碳化硼会降低钢衰减伽马辐射的能力。

更新日期:2021-09-23
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