论文标题
纯LI2MOO4晶体的生长和开发在杯赛上进行稀有事件实验
Growth and development of pure Li2MoO4 crystals for rare event experiment at CUP
论文作者
论文摘要
基础科学研究所（IBS）的地下物理学中心（IBS）正在寻找100mo的中性链脱肌衰变（0ν\ b {eta} \ b {eta}）在Amore实验的钼酸晶体中。该实验需要纯净的闪烁晶体，以最大程度地减少可能影响0ν\ b {eta} \ b {eta}信号的内部背景。在过去的几年中，我们一直在清洁环境设施中生长和研究LI2MOO4晶体，以最大程度地减少晶体生长过程中的外部污染。在生长Li2100MOO4晶体之前，我们已经通过常规的牙齿种植者（CZ）种植者研究了LI2NATMOO4晶体的生长。我们在运动中使用不同的原材料种植了几种不同种类的Li2natmo4晶体，以最大程度地减少杂质。我们准备了嵌入式矿石生长的熔融AL2O3折射率。用高纯度锗探测器和电感耦合等离子体质谱法测量生长晶体的纯度。结果表明，LI2MOO4晶体具有适合稀有事件实验的纯度水平。在这项研究中，我们介绍了Li2moo4晶体在杯子及其纯度上的生长。
The Center for Underground Physics (CUP) of the Institute for Basic Science (IBS) is searching for the neutrinoless double-beta decay (0ν\b{eta}\b{eta}) of 100Mo in the molybdate crystals of the AMoRE experiment. The experiment requires pure scintillation crystals to minimize internal backgrounds that can affect the 0ν\b{eta}\b{eta} signal. For the last few years, we have been growing and studying Li2MoO4 crystals in a clean-environment facility to minimize external contamination during the crystal growth. Before growing Li2100MoO4 crystal, we have studied Li2natMoO4 crystal growth by a conventional Czochralski (CZ) grower. We grew a few different kinds of Li2natMO4 crystals using different raw materials in a campaign to minimize impurities. We prepared the fused Al2O3 refractories for the growth of ingots. Purities of the grown crystals were measured with high purity germanium detectors and by inductively coupled plasma mass spectrometry. The results show that the Li2MoO4 crystal has purity levels suitable for rare-event experiments. In this study, we present the growth of Li2MoO4 crystals at CUP and their purities.
