论文标题
部分可观测时空混沌系统的无模型预测
Development of Compact Muon Spectrometer Using Multiple Pressurized Gas Cherenkov Radiators
论文作者
论文摘要
在粒子物理和兆恩应用中，高分辨率的MUON动量测量能力不仅在提供有关亚原子颗粒特性的有价值的信息方面发挥了重要作用，而且在改善宇宙射线MUON的利用率方面也起着重要作用。通常，通过使用强磁场和MUON跟踪器重建弯曲的哑光路径来测量MUON动量。另外，飞行时间和Cherenkov环成像仪的应用较少，尤其是在需要避免磁场时。但是，测量分辨率远小于磁光谱仪，大约20％，而使用磁铁和跟踪器时的分辨率近4％或更少。在这里，我们提出了一种不同的范式来估计使用多个加压气体Cherenkov辐射器的MUON动量。利用气体介质的折射率取决于其压力和温度的变化，我们可以优化将检测到MUON信号的Muon Cherenkov阈值动量水平。在这项工作中，我们证明，通过分析来自每个Cherenkov散热器的光子光子信号，在0.1至10.0 GEV/C的动量范围内，可以通过平均分辨率为{SIGMA_P}/P <20％和平均分类率的平均分辨率为90.08％。我们预计，我们的新光谱仪将通过与现有仪器合并，可以显着提高成像质量并减少宇宙射线MUON应用中的扫描时间。
In both particle physics and muon applications, a high-resolution muon momentum measurement capability plays a significant role not only in providing valuable information on the properties of subatomic particles but also in improving the utilizability of cosmic ray muons. Typically, muon momentum is measured by reconstructing a curved muon path using a strong magnetic field and muon trackers. Alternatively, a time-of-flight and Cherenkov ring imager are less frequently applied, especially when there is a need to avoid a magnetic field. However, measurement resolution is much less than that of magnetic spectrometers, approximately 20% whereas it is nearly 4% or less when using magnets and trackers. Here, we propose a different paradigm to estimate muon momentum that utilizes multiple pressurized gas Cherenkov radiators. Using the fact that the refractive index of gas medium varies depending on its pressure and temperature, we can optimize the muon Cherenkov threshold momentum levels for which a muon signal will be detected. In this work, we demonstrate that muon momentum can be estimated with mean resolution of {sigma_p}/p < 20% and mean classification rate of 90.08% in the momentum range of 0.1 to 10.0 GeV/c by analyzing optical photon signals from each Cherenkov radiator. We anticipate our new spectrometer will significantly improve quality of imaging and reduce scanning time in cosmic ray muon applications by being incorporated with existing instruments.
