Abstract Fabrication of scintillating eutectic composites by various directional solidification techniques is introduced and discussed in some details. Number of methods widely practiced for the single crystal growth including Czochralski, Bridgman or vertical zone melting, and micro-pulling-down are also acceptable for the production of eutectic materials. Two types of such materials are considered here. These are (1) composites used for neutron scintillators; eutectic materials that consist of high neutron cross section material and efficient scintillator (they do not require regular micro-structure) and (2) high resolution scintillators; eutectic materials that have well ordered rod/fiber structure of one of the phases immersed into matrix of second phase (one of them should be efficient scintillator). In later one, the wave guiding can be established in one of the phases (either matrix or fibers). The composites with fiber structure are supposed to be very promising substances for detecting initial irradiation with high spatial resolution. LiF/LiYF 4 and LiF/CaF 2 :Eu eutectic composites represent first group of the scintillators, but CsI/NaCl and GdAlO 3 /α-Al 2 O 3 correspond to the second one.

中文翻译：

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用于闪烁体应用的定向凝固共晶体系的生长和表征

摘要 介绍并详细讨论了各种定向凝固技术制备闪烁共晶复合材料的方法。包括直拉法、布里奇曼法或垂直区熔法和微下拉法在内的许多广泛用于单晶生长的方法也适用于生产共晶材料。这里考虑两种类型的这种材料。它们是 (1) 用于中子闪烁体的复合材料；由高中子截面材料和高效闪烁体（它们不需要规则的微观结构）和（2）高分辨率闪烁体组成的共晶材料；具有良好有序棒/纤维结构的共晶材料，其中一相浸入第二相的基质中（其中之一应该是有效的闪烁体）。在后一期，可以在其中一个相（基质或纤维）中建立波导。具有纤维结构的复合材料被认为是用于检测具有高空间分辨率的初始辐射的非常有前途的物质。LiF/LiYF 4 和LiF/CaF 2 :Eu 共晶复合材料代表第一组闪烁体，而CsI/NaCl 和GdAlO 3 /α-Al 2 O 3 对应于第二组。