UCNB和Nab实验中子$β$衰变关联探测系统
Detection System for Neutron $β$ Decay Correlations in the UCNB and Nab experiments
摘要：
本文描述了一种用于中子$β$衰变角关联精确测量的探测系统。该系统是基于厚，大面积，高度分段的硅探测器与美光半导体公司合作开发的原型系统符合规格的$β$电子探测能量阈值低于10千电子伏，能量分辨率为$\sim$ 3千电子伏半高宽，和上升时间为$\sim$ 50纳秒的127个探测器像素的19仪表。利用洛斯阿拉莫斯中子科学中心的超冷中子，我们证明了$β$粒子和中子$β$衰变反冲质子的同时探测。将在UCNB和Nab实验中实施全仪器化探测系统，以确定中子$β$衰变参数$B$、$a$和$b$。
英文摘要：
We describe a detection system designed for precise measurements of angular correlations in neutron $β$ decay. The system is based on thick, large area, highly segmented silicon detectors developed in collaboration with Micron Semiconductor, Ltd. The prototype system meets specifications for $β$ electron detection with energy thresholds below 10 keV, energy resolution of $\sim$3 keV FWHM, and rise time of $\sim$50 ns with 19 of the 127 detector pixels instrumented. Using ultracold neutrons at the Los Alamos Neutron Science Center, we have demonstrated the coincident detection of $β$ particles and recoil protons from neutron $β$ decay. The fully instrumented detection system will be implemented in the UCNB and Nab experiments, to determine the neutron $β$ decay parameters $B$, $a$, and $b$.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
