The AMoRE collaboration searches for the neutrinoless double-beta decay of 100Mo with ultra-radiopure molybdate crystals operated as low-temperature scintillating bolometers. For such a rare event search experiment, the techniques for investigating and reducing radioactive background contaminants in detector materials are extremely crucial. This paper discusses techniques for deep purification of enriched molybdenum for growing the crystals and the recovery of 100MoO3 from the residual melt left after growing lithium molybdate crystals. The purities of enriched molybdenum trioxide powders before and after the purification and that of the recovered powder were tested with ICP-MS; results of these tests are presented.

中文翻译：

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用于 AMoRE 实验的晶体生产中 100MoO3 的纯化和回收

AMoRE 合作使用超放射性纯钼酸盐晶体作为低温闪烁辐射热计来寻找 100Mo 的无中微子双 β 衰变。对于这样一个罕见的事件搜索实验，调查和减少探测器材料中放射性背景污染物的技术至关重要。本文讨论了用于晶体生长的富钼深度提纯技术以及从钼酸锂晶体生长后剩余熔体中回收 100MoO3 的技术。用ICP-MS检测富集三氧化钼粉体纯化前后和回收粉体的纯度；介绍了这些测试的结果。