Exposure to high energy radiations like X/gamma rays and neutrons is of serious concern for radiation professionals as they result in several radiation hazards. Shielding plays a prominent role in reducing the radiation exposure. Attempts are being made by several researchers to explore a novel material which can effectively absorb high energy radiations and find a best substitute for lead which is known to be heavy and toxic. In the present study, authors have attempted to synthesize a novel material and investigate the radiation shielding ability and structural properties of BiOW nanomaterial. BiOW nanomaterial has been synthesized for the first time using green synthesis approach in order to have environmental friendly material. SEM, XRD & FTIR techniques were used to investigate the physical & chemical structure and gamma ray spectrometer to study the gamma shielding ability of the said material. The XRD results reveal single crystal structure of the material. The mass attenuation coefficient was found to decrease with increase in photon energy due to the interaction of photons with the nanomaterial. The mass attenuation coefficient is found to be 0.127 ± 0.017, 0.142 ± 0.02, 0.106 ± 0.015,0.090 ± 0.013, 0.089 ± 0.013 and 0.094 ± 0.014 cm/g for 0.276, 0.365, 0.511, 0.662, 1.173 and 1.332 MeV gamma rays respectively. The radiation protection efficiency is found to be high in lower energy range when compared to higher energy range of gamma photons. Thus, the newly synthesized nanomaterial can be used for shielding of X/Gamma radiations in the radiation environment thus proving its efficiency in low energy shielding applications like medical field.

中文翻译：

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铋钨氧化物（Bi[式略]O[式略]W）纳米粒子的伽马屏蔽能力

暴露于 X/伽马射线和中子等高能辐射是辐射专业人员严重关注的问题，因为它们会导致多种辐射危害。屏蔽在减少辐射暴露方面发挥着重要作用。一些研究人员正在尝试探索一种能够有效吸收高能辐射的新型材料，并找到已知重且有毒的铅的最佳替代品。在本研究中，作者尝试合成一种新型材料，并研究 BiOW 纳米材料的辐射屏蔽能力和结构特性。首次采用绿色合成方法合成了BiOW纳米材料，以实现环境友好的材料。利用SEM、XRD和FTIR技术研究了该材料的理化结构，并利用伽马射线光谱仪研究了该材料的伽马屏蔽能力。 XRD结果揭示了材料的单晶结构。由于光子与纳米材料的相互作用，质量衰减系数随着光子能量的增加而减小。对于 0.276、0.365、0.511、0.662，质量衰减系数为 0.127 ± 0.017、0.142 ± 0.02、0.106 ± 0.015、0.090 ± 0.013、0.089 ± 0.013 和 0.094 ± 0.014 cm/g，分别为 1.173 和 1.332 MeV 伽马射线。与伽马光子的较高能量范围相比，较低能量范围的辐射防护效率较高。因此，新合成的纳米材料可用于屏蔽辐射环境中的X/Gamma辐射，从而证明了其在医疗领域等低能屏蔽应用中的效率。