论文标题
用于中子衰减实验中的硅光电培养基的研究
Study of silicon photomultipliers for use in neutron decay experiments
论文作者
论文摘要
研究了塑料闪烁体的光子读数，目的是提高中子\ b {eta}衰减实验的精度。如今，基于最多109个注册的衰减事件，对中子衰减进行了高统计数据，并导致对新物理的限制超出标准模型，而\ b {eta} S经常以塑料闪烁体注册。这些实验中的主要系统误差是由于闪烁体在线性，能量分辨率和电子反向散射方面的不完美表征。我们研究当用于闪烁体读数的常规光电倍增器被硅光电塑料（SIPMS）取代时，这些误差是否会减少。为此，开发了各种理论和实验工具，并提出了一种处理极端黑暗速率的程序。在\ b {eta}光谱学中，结论是带有sipms的塑料闪烁体读数可以显着改善能量响应，并有助于为电子反向散射提供可靠的校正。
Photon readout of plastic scintillators is investigated with the aim of improving the precision of neutron \b{eta} decay experiments. Neutron decay is nowadays studied with high statistics, based on up to 109 registered decay events, and leads to strongly improved limits on new physics beyond the standard model, with \b{eta}s often registered in plastic scintillators. The main systematic errors in these experiments are due to imperfect characterization of the scintillators with respect to linearity, energy resolution, and electron backscattering. We study whether these errors can be diminished when the conventional photomultipliers used for scintillator readout are replaced by silicon photomultipliers (SiPMs). To this end, various theoretical and experimental tools are developed, and a procedure for handling the extreme dark rates of SiPMs is proposed. In \b{eta} spectroscopy, so the conclusion, plastic scintillator readout with SiPMs can significantly improve energy response, and help providing reliable corrections for electron backscattering.
