Radiation protection materials, such as lead (Pb), water, concrete, steel, and aluminum, have been successfully used for decades. Although they are effective shields, these materials do have limitations. For example, lead is heavy and toxic, and water and concrete must be thick to provide significant shielding, all of which renders these materials prohibitive for certain applications. For example, the half-value layer for water to shield against Co is 30.48 cm (12"), which makes it an extremely bulky material. The development of ClearView Radiation Shielding addresses some of the limitations that are faced by traditional radiation protection shields. The product is a transparent liquid gamma radiation shield that can be fabricated in custom sizes and thicknesses. Here, we describe applications of ClearView Radiation Shielding in nuclear plants and hospitals. ClearView Radiation Shielding is used to shield nuclear power plant workers from Co in critical path and high dose in refueling outages to observe automated operations inside the containment, and operations such as cylindrical frisking stations and benchtop sampling. ClearView Radiation Shielding is designed as rolling shields and radionuclide containments in hospitals to protect staff and families during unsealed radionuclide treatment such as MIBG and Lutetium therapies. For successful implementation in hospitals, the product was tested against various radioisotopes, also described in this work. Operational uses of ClearView Radiation Shielding in commercial nuclear and medical industries allows staff working in radioactive environments visibility, better communication and similar levels of radiation protection compared with traditional shielding materials. The product helps improve workflows and reduced total dose received by workers. Additionally, attenuation measurements using ClearView Radiation Shielding against multiple isotopes was performed. With 1.25 cm (0.5") ClearView Radiation Shielding thickness, the shield attenuated 1) 65% of the effective dose from I, 2) 35.15% of the effective dose from Cs, and 3) 22.5% of the effective dose from Co. Isotopes in the range of 35 keV to 1899 keV. 3.81 were attenuated greater than 90% with a ClearView Radiation Shielding shield thickness of 7.62 cm (3"). The half-value layer for Co with a ClearView Radiation Shielding thickness of 3.81 cm (1.5") attenuated the effective dose of F gammas by 85.59%. With a density of 2.3 g cm, ClearView Radiation Shielding was measured to be half the weight of lead for equal shielding. ClearView Radiation Shielding is transparent, lightweight, and an alternative material to conventional radiation shields to reduce radiation exposure.

中文翻译：

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在核电厂、医院和放射性药房使用 ClearView Radiation ShieldingTM 衰减伽马辐射。

几十年来，铅 (Pb)、水、混凝土、钢和铝等辐射防护材料已成功使用。尽管它们是有效的防护罩，但这些材料确实有局限性。例如，铅很重且有毒，水和混凝土必须很厚才能提供显着的屏蔽，所有这些都使得这些材料在某些应用中无法使用。例如，水屏蔽 Co 的半值层为 30.48 厘米（12 英寸），这使其成为一种极其庞大的材料。ClearView 辐射屏蔽的开发解决了传统辐射防护屏蔽所面临的一些限制。该产品是一种透明的液体伽马辐射防护罩，可以定制尺寸和厚度。在这里，我们描述了 ClearView 辐射屏蔽在核电站和医院中的应用。ClearView 辐射屏蔽用于保护核电厂工作人员免受关键路径中的钴和换料中断中的高剂量钴的影响，以观察安全壳内的自动化操作，以及圆柱形探查站和台式采样等操作。ClearView 辐射屏蔽被设计为医院中的滚动屏蔽和放射性核素容器，以在非密封放射性核素治疗（如 MIBG 和镥治疗）期间保护工作人员和家人。为了在医院成功实施，该产品针对各种放射性同位素进行了测试，本工作也对此进行了描述。ClearView Radiation Shielding 在商业核工业和医疗行业中的操作使用使在放射性环境中工作的工作人员能够看到，与传统屏蔽材料相比，更好的通信和类似水平的辐射防护。该产品有助于改善工作流程并减少工人接受的总剂量。此外，还使用 ​​ClearView 辐射屏蔽对多种同位素进行了衰减测量。使用 1.25 cm (0.5") ClearView Radiation Shielding 厚度时，防护罩衰减 1) I 的 65% 有效剂量，2) Cs 有效剂量的 35.15%，和 3) Co. Isotopes 有效剂量的 22.5%在 35 keV 到 1899 keV 的范围内。3.81 衰减超过 90%，ClearView 辐射屏蔽罩厚度为 7.62 厘米（3 英寸）。具有 3.81 cm (1.5") 厚度的 ClearView 辐射屏蔽层的 Co 半值层将 F 伽马的有效剂量衰减了 85.59%。密度为 2.3 g cm，ClearView 辐射屏蔽经测量为同等屏蔽的铅重量的一半。ClearView 辐射屏蔽是透明的、重量轻的，是传统辐射屏蔽的替代材料，可减少辐射暴露。