论文标题
Canfranc地下实验室中子率的长期演变
Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
论文作者
论文摘要
我们报告了Canfranc Underground Laboratory中的中子计数率的长期差异，这对于安装在那里的几个低背景实验的重要性，包括罕见的事实搜索。测量运动是使用安装在A厅的高效中子光谱阵列（Hensa）进行的，持续了412个现场日子。本研究是对中子速率的首次长期测量，其灵敏度在迄今为止在任何地下实验室中进行的广泛的中子能量（从热量到0.1 GEV及更高）进行。在所有测量运动中，还获取了实验厅内环境变量（ra浓度，气温，气压和湿度）的数据。我们首次研究了中子不同能量的中子速率的演变及其与环境变量的相关性。
We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron Spectrometry Array (HENSA) mounted in Hall A and lasted 412 live days. The present study is the first long-term measurement of the neutron rate with sensitivity over a wide range of neutron energies (from thermal up to 0.1 GeV and beyond) performed in any underground laboratory so far. Data on the environmental variables inside the experimental hall (radon concentration, air temperature, air pressure and humidity) were also acquired during all the measurement campaign. We have investigated for the first time the evolution of the neutron rate for different energies of the neutrons and its correlation with the ambient variables.
