论文标题
使用振荡探测器的超速中子速度光谱及其进化的原位测量
In-situ measurement of the velocity spectrum of ultracold neutrons and its evolution using an oscillating detector
论文作者
论文摘要
超电压中子（UCN）用于研究基本相互作用，测试粒子物理学的标准模型并搜索超越现象的实验。对UCN的能量谱的了解通常是确定使用UCN的精确测量中系统效应的关键要素。提出的新方法允许对UCN速度分布及其时间演化的原位测量。此外，提出的UCN光谱仪可以是一种方便的诊断工具，用于监测UCN传输系统中关键位置的光谱，该工具将UCN源连接到UCN源。在本文中，我们显示了Paul Scherrer Institute的UCN来源进行的测量结果。
Ultracold neutrons (UCNs) are used in experiments investigating fundamental interactions, testing the Standard Model of particle physics and searching for phenomena beyond it. Knowledge of the energy spectrum of UCNs is very often a key ingredient to determine the systematic effects in precision measurements utilizing UCNs. The proposed novel method allows for the in-situ measurements of the UCN velocity distribution and its time evolution. In addition, the proposed UCN spectrometer can be a handy diagnostic tool for monitoring the spectrum in critical places in the UCN transport system connecting an UCN source with experiments. In this paper, we show the results from the measurements performed at the Paul Scherrer Institute's UCN source.
