论文标题
搜索使用CS $ _2 $ hfcl $ _6 $闪烁体的$α$衰减天然发生的HF核粉
Search for $α$ decay of naturally occurring Hf-nuclides using a Cs$_2$HfCl$_6$ scintillator
论文作者
论文摘要
在意大利INFN的Gran Sasso国家实验室的低背景设置中，已经测量了氯化丘丘（CS $ _2 $ hfcl $ _6 $）的残留放射性污染物。检测器的总α活性为7.8（3）MBQ/kg。提出了对使用“源=检测器”方法进行的自然存在的HF同位素的$α$衰减的直接研究结果。在2848小时的数据获取中，观察到$α$衰减为$^{174} $ hf，使用t $ _ {1/2} =（7.0 \ pm1.2）\ times10^{16} $ y。
Residual radioactive contaminants of a caesium hafnium chloride (Cs$_2$HfCl$_6$) crystal scintillator have been measured in a low background setup at the Gran Sasso National Laboratory of the INFN, Italy. The total alpha activity of the detector is at the level of 7.8(3) mBq/kg. The results of direct studies of the $α$ decay of naturally occurring Hf isotopes that have been performed using the "source=detector" approach are presented. In 2848 h of data taking, the $α$ decay of $^{174}$Hf was observed with T$_{1/2} = (7.0\pm1.2)\times10^{16} $ y.
