$^{82}$ SeF $_6$的无中子双β衰变和直接离子成像
Neutrinoless Double Beta Decay with $^{82}$SeF$_6$ and Direct Ion Imaging
摘要：
提出了一种新的无中微子双β衰变概念：高压六氟化硒气体时间投影室。结合高压氙气中开创的技术，如拓扑鉴别，与双β衰变同位素$^{82}$ Se提供的高Q值，概述了一种有前途的新检测技术。SeF $_6$中缺乏自由电子要求使用离子TPC。离子产生和漂移的微观物理，其中有许多细微差别，进行了探讨。背景估计表明，这样的探测器可以实现优于1计数每吨每年在感兴趣的区域在100公斤规模的背景指数，更好的吨规模。
英文摘要：
We present a new neutrinoless double beta decay concept: the high pressure selenium hexafluoride gas time projection chamber. Combining techniques pioneered in high pressure xenon gas such as topological discrimination, with the high Q-value afforded by double beta decay isotope $^{82}$Se, a promising new detection technique is outlined. Lack of free electrons in SeF$_6$ mandates the use of an ion TPC. The microphysics of ion production and drift, which have many nuances, are explored. Background estimates are produced suggesting such a detector may achieve background indices of better than 1 count per ton per year in the region of interest at the 100~kg scale, and still better at the ton-scale.
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