论文标题
部分可观测时空混沌系统的无模型预测
First operation of undoped CsI directly coupled with SiPMs at 77 Kelvin
论文作者
论文摘要
直接连接的一个小碘化碘化石（CSI）的光产量与两个硅光层面（sipms）约为77 〜Kelvin的光线均为$ 43.0 \ pm 1.1 $ 1.1 $ 〜photelectrons（pe），每kev electrare equiverent ful kev $ _ \ kev $ _ \ kev $ _ \ text $ $ x $ x $ x $ x $ x $^{241} $ AM放射性源从18至60 KeV。高光的产量以及其他一些技术优势说明了这种新颖的组合对中微子和低质量暗物质检测的巨大潜力，尤其是在基于加速器的基于中微子的来源，在这种源中，可以通过需要在sipms和beam脉冲脉冲时正时信号之间高度抑制随机背景。确定了使用低温SIPM而不是光电倍增管（PMT）的一些潜在缺点，例如能量分辨率较差和sipm之间的光学串扰。讨论了它们对罕见事实检测的影响，并提供了可能的解决方案。
The light yield of a small undoped cesium iodide (CsI) crystal directly coupled with two silicon photomultipliers (SiPMs) at about 77~Kelvin was measured to be $43.0 \pm 1.1$~photoelectrons (PE) per keV electron-equivalent (keV$_\text{ee}$) using $X$ and $γ$-ray peaks from an $^{241}$Am radioactive source from 18 to 60 keV. The high light yield together with some other technical advantages illustrate the great potential of this novel combination for neutrino and low-mass dark matter detection, particularly at accelerator-based neutrino sources, where random background can be highly suppressed by requiring coincident triggers between SiPMs and beam pulse timing signals. Some potential drawbacks of using cryogenic SiPMs instead of photomultiplier tubes (PMTs) were identified, such as worse energy resolution and optical cross-talks between SiPMs. Their influence to rare-event detection was discussed and possible solutions were provided.
