论文标题
订购型中子的后备检测器
A backing detector for order-keV neutrons
论文作者
论文摘要
我们根据\ ce {^{6} li}上的中子捕获设计并测试了一个大区域（0.15〜M $^2 $）中子检测器。中子探测器设计已被优化，目的是标记keV尺度中子的散射角度。这些中子探测器将用于校准暗物质和相干弹性中微子核散射（CE $ν$ ns）的检测器中的低能（$ <$ 100 eV）核后坐力。我们描述了原型的设计，结构和表征。该原型旨在在相关$ \ Mathcal {O} $（KEV）中子能量中具有$ \ sim $ 25 \％的标记效率，并具有$ \ sim $ 17 $ 〜μ $ s的平均捕获时间。使用\ ce {^{252} cf}中子源对原型进行表征，并在几个百分点的水平范围内观察到与模拟的一致性。
We have designed and tested a large-area (0.15~m$^2$) neutron detector based on neutron capture on \ce{^{6}Li}. The neutron detector design has been optimized for the purpose of tagging the scattering angle of keV-scale neutrons. These neutron detectors would be employed to calibrate the low-energy ($<$100 eV) nuclear recoil in detectors for dark matter and coherent elastic neutrino nucleus scattering (CE$ν$NS). We describe the design, construction, and characterization of a prototype. The prototype is designed to have a tagging efficiency of $\sim$25\% at the relevant $\mathcal{O}$(keV) neutron energies, and with a mean capture time of $\sim$17$~μ$s. The prototype was characterized using a \ce{^{252}Cf} neutron source and agreement with the simulation was observed within a few percent level.
