论文标题
可行性研究将使用中子捕获进行液体氙的超低能核能校准
Feasibility Study to use Neutron Capture for an Ultra-low Energy Nuclear-recoil Calibration in Liquid Xenon
论文作者
论文摘要
研究了针对高闪烁增益和脉冲中子源优化的小（亚基）液体XENON检测器，研究了使用中子捕获的液体氙气测量器和脉冲中子源的小（亚kilogram）液体检测器的可行性。该测量使用中子捕获后取消启动过程中赋予氙核的后坐力能量，在此迅速发射$γ$ cascades可以为核提供高达$ 0.3 $ kev $ _ \ _ \ text {nr} $，这是由于动力保存所致。闪烁光子光子和电离电子产量的成功校准低于此能量，将有助于对液体氙气实验的敏感性更大。
The feasibility of an ultra-low energy nuclear-recoil measurement in liquid xenon using neutron capture is investigated for a small (sub-kilogram) liquid xenon detector that is optimized for a high scintillation gain, and a pulsed neutron source. The measurement uses the recoil energies imparted to xenon nuclei during the de-excitation process following neutron capture, where promptly emitted $γ$ cascades can provide the nuclei with up to $0.3$ keV$_\text{nr}$ of recoil energy due to conservation of momentum. A successful calibration of scintillation photon and ionization electron yields below this energy will contribute to a greater sensitivity for liquid xenon experiments in searches for light WIMPs.
