论文标题
传奇实验的氢化二氧化锗和区域缩放的氢还原
Hydrogen reduction of enriched germanium dioxide and zone-refining for the LEGEND experiment
论文作者
论文摘要
现在正在构建的传奇实验将运行大量的GE检测器，以搜索$^{76} $ ge的中微子双β衰变。在本文中，我们报告了少于$^{76} $ ge富集二氧化锗的氢的过程开发，这是为传说实验制造探测器的一部分。该过程是通过动力学未反应的缩小模型优化的，并用一批天然地理$ _2 $进行了测试。我们完成了减少23千克同位素富集GE的批次，平均收率为99.85％。随后，通过区域固定将GE纯化为固有的纯度，总体GE产量达到99.05％。使用中间地下存储，累积了156小时的平均宇宙基因暴露。在此过程中特别注意避免和回收损失。
The LEGEND experiment, now under construction, will operate a large array of Ge detectors for the search of neutrinoless double-beta decay of $^{76}$Ge. In this paper we report on the process development for the hydrogen reduction of germanium dioxide enriched in $^{76}$Ge as part of the effort to manufacture detectors for the LEGEND experiment. The process was optimized via a kinetic un-reacted shrinking model and tested with a batch of natural GeO$_2$. We completed the reduction of a batch of 23 kg isotopically enriched Ge with an average yield of 99.85%. Subsequently, the Ge was purified to intrinsic purity by zone-refining and an overall Ge yield of 99.05% was achieved. Using an intermediate underground storage, an average cosmogenic exposure of 156 h was accumulated. Special care was taken to avoid and recycle losses during the process.
