论文标题
Saber North的地位和前景
Status and prospects of SABRE North
论文作者
论文摘要
我们介绍了Saber North实验的低背景NAI（TL）晶体的表征。在意大利的实验室Nazionali del Gran Sasso进行了两个不同的设置中对Crystal Nai-33进行了研究。原理证明（POP）检测器配备了液体闪烁剂否决权，并收集了大约一个月（90千克$ \ times $ $天）的数据。流行干燥设置由纯粹的被动屏蔽中的NAI-33组成，并收集了将近一年的数据（891千克$ \ times $ $ $）。对于暗物质搜索的感兴趣区域（1-6 KEV）的平均背景为1.20 $ \ pm $ 0.05和1.39 $ \ pm $ 0.02计数/天/天/千克/kev和流行音乐设置。该结果为Saber North检测器的物理阶段进行了新的屏蔽设计，该设计无法预见使用有机液体闪烁体外部否决。
We present the characterization of a low background NaI(Tl) crystal for the SABRE North experiment. The crystal NaI-33, was studied in two different setups at Laboratori Nazionali del Gran Sasso, Italy. The Proof-of-Principle (PoP) detector was equipped with a liquid scintillator veto and collected data for about one month (90 kg$\times$days). The PoP-dry setup consisted of NaI-33 in a purely passive shielding and collected data for almost one year (891 kg$\times$days). The average background in the energy region of interest (1-6 keV) for dark matter search was 1.20 $\pm$ 0.05 and 1.39 $\pm$ 0.02 counts/day/kg/keV within the PoP and the PoP-dry setup, respectively. This result opens to a new shielding design for the physics phase of the SABRE North detector, that does not foresee the use of an organic liquid scintillator external veto.
