A near-index-matched (Δn ≤ 0.018) scintillating composite was fabricated with phase pure BaFCl:Sm²⁺ and Norland Optical Adhesive 1665, and it exhibits an improved transmissivity leading to optical translucency. The mean-free-path was measured to be 249 µm at the 687 nm peak scintillation wavelength, indicating that optical translucency can be maintained to substantial composite thicknesses. With increasing thickness, the composite becomes more sensitive to higher energy irradiation yet maintains the ability to transmit scintillation photons. This versatile material is attractive for both low energy and high energy radiation detection applications.

中文翻译：

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用于辐射检测的光学半透明 BaFCl:Sm2+ 闪烁微粒复合材料

使用相纯 BaFCl:Sm ²⁺和 Norland 光学粘合剂 1665制造了一种接近指数匹配 (Δn ≤ 0.018) 的闪烁复合材料，它具有改进的透射率，从而导致光学半透明。在 687 nm 峰值闪烁波长处测得的平均自由程为 249 µm，表明光学半透明性可以保持到相当大的复合材料厚度。随着厚度的增加，复合材料对更高能量的辐射变得更加敏感，但仍保持传输闪烁光子的能力。这种多功能材料对低能和高能辐射检测应用都很有吸引力。