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发明授权
CN101597798B 共掺杂改性硼酸钆锂闪烁晶体及其制备方法 失效 - 权利终止

共掺杂改性硼酸钆锂闪烁晶体及其制备方法
摘要：
本发明属于闪烁晶体材料领域，具体涉及一种共掺杂改性硼酸钆锂闪烁晶体及其制备方法，该共掺杂改性硼酸钆锂闪烁晶体的化学式为：Li6CexNyGd1-x-yB3O9-δ/2Mδ，其中，M选自以下元素中的一种或两种：F、Cl、Br和I；N选自以下元素中的一种或两种：Sc、Y、La和Lu；所述Li元素、Gd元素和B元素中的至少一种以特殊同位素的形式存在；其中0＜x≤0.2，0≤y＜1，0≤δ≤0.1，且y和δ不同时为0，其制备方法为：原料经过混合、固相合成、化料，在单晶生长炉中通过提拉法生长制备成单晶形态。本发明共掺杂改性硼酸钆锂闪烁晶体以Ce3+离子为发光中心，锂、钆和硼元素是以锂-6、钆-155、钆-157或硼-10同位素的一种或其组合的形式存在，起到与被探测中子产生核反应的作用。
摘要（英）：

The invention belongs to the field of scintillation crystal materials, especially relating to a codoping modified lithium gadolinium borate scintillation crystal and a preparation method thereof. The codoping modified lithium gadolinium borate scintillation crystal has the following chemical formula: Li6CexNyGd1-x-yB3O9-delta/2Mdelta, wherein, M is selected from one or two elements of F, Cl, Br and I, N is selected from one or two elements of Sc, Y, La and Lu, and at least one of Li element, Gd element and B element exists in the form of special isotope; x is more than 0 and is 0.2 at most, yis 0 at least and is smaller than 1, delta is 0 at least and 0.1 at most, and y and delta can not be 0 at the same time. The preparation method comprises the following steps: raw materials are mixed, synthesized in solid phase and transformed to grow and prepare single crystal form with a pulling method in a single crystal growing furnace. The codoping modified lithium gadolinium borate scintillation crystal of the invention takes Ce<3+> ion as an luminous center, and lithium, gadolinium and borate elements exist in one or the combination of Li-6, gadolinium-155, gadolinium-157 or borate-10 isotope so as to perform the function of generating nuclear reaction with the detected neutrons.

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