论文标题
观察掺有甲烷的液体氩气的可见范围内的原发性闪烁
Observation of primary scintillations in the visible range in liquid argon doped with methane
论文作者
论文摘要
基于含有氢原子的液体闪烁体的中子否决探测器是任何地下实验的组成部分，用于暗物质搜索。到目前为止，在此类探测器中，将液态烃的易燃混合物用作液体闪烁体。安全的替代方法可能是基于含甲烷掺杂的液体氩气的液体闪烁体。在这项工作中，我们研究了纯液体氩气及其与甲烷的混合物中的主要闪烁，CH4含量从100 ppm到5％不等。在可见的和接近红外范围内掺杂甲烷的液体氩气中，首次观察到主要的闪烁，并且它们的相对光屈服是根据CH4含量的函数测量的。
Neutron veto detector based on liquid scintillator containing hydrogen atoms is an integral part of any underground experiment for dark matter search. So far, a flammable mixture of liquid hydrocarbons was used as a liquid scintillator in such detectors. A safe alternative might be a liquid scintillator based on liquid argon doped with methane. In this work, we have studied the primary scintillations in pure liquid argon and its mixtures with methane, the CH4 content varying from 100 ppm to 5%. The primary scintillations have for the first time been observed in liquid argon doped with methane, in the visible and near infrared range, and their relative light yields have been measured as a function of the CH4 content.
