论文标题
扩展Lorentz因子范围和使用复合辐射的过渡辐射的灵敏度
Extending the Lorentz Factor Range and Sensitivity of Transition Radiation with Compound Radiators
论文作者
论文摘要
过渡辐射探测器（TRD）已用于鉴定加速器实验中的高能量颗粒（尤其是将电子与较重颗粒分开）。在太空中，它们已被用来识别宇宙射线电子并测量宇宙射线核的能量。迄今为止，散热器由箔厚度和间距的固定值（或具有相当平均尺寸的泡沫或光纤辐射器）的固定构型组成，这些值在相对受限的Lorentz因子范围内运行。为了扩展未来TRD的适用性（例如，在未来的加速器实验中识别遥远区域中的0.5-3个TeV Tev pions，Kaons和质子，或测量最高20 teV/nucleon或更高范围的宇宙射线核的能量谱），需要增加信号强度并扩展Lorentz因子的范围。一种可能的方法是利用由不同的散热器参数组成的复合辐射器。我们讨论复合散热器的情况，并在TRD中得出具有任意箔厚度和间距的构型产生的产率。
Transition radiation detectors (TRDs) have been used to identify high-energy particles (in particular, to separate electrons from heavier particles) in accelerator experiments. In space, they have been used to identify cosmic-ray electrons and measure the energies of cosmic-ray nuclei. To date, radiators have consisted of regular configurations of foils with fixed values of foil thickness and spacing (or foam or fiber radiators with comparable average dimensions) that have operated over a relatively restricted range of Lorentz factors. In order to extend the applicability of future TRDs (for example, to identify 0.5 - 3 TeV pions, kaons, and protons in the far forward region in a future accelerator experiment or to measure the energy spectrum of cosmic-ray nuclei up to 20 TeV/nucleon or higher), there is a need to increase the signal strength and extend the range of Lorentz factors that can be measured in a single detector. A possible approach is to utilize compound radiators consisting of varying radiator parameters. We discuss the case of a compound radiator and derive the yield produced in a TRD with an arbitrary configuration of foil thicknesses and spacings.
