Single particle detection system for strong-field QED experiments
Single particle detection system for strong-field QED experiments
复制标题
用于强场 QED 实验的单粒子检测系统
DOI：
10.1088/1367-2630/ac4283
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发表时间：
2021
影响因子：
3.3
通讯作者：
Salgado F
中科院分区：
文献类型：
--
作者：
Salgado F
在强激光场中测量强场量子电动力学 (SF-QED) 过程的特征是一项实验挑战：它要求探测器在存在通常非常强的 X 射线和 γ 光子背景水平的情况下对单个电子和正电子高度敏感。在本文中，我们描述了一种能够从 SF-QED 相互作用中诊断单个轻子的粒子探测器，并讨论了 FACET-II（SLAC 国家加速器实验室）即将进行的 Experiment-320 的背景水平模拟。这里描述的单粒子检测系统结合了像素化闪烁 LYSO 屏幕和切伦科夫量热计。我们通过模拟和校准 ELBE 加速器上的切伦科夫探测器来详细介绍系统的性能。单个 3 GeV 轻子预计将在单个量热计通道中产生大约 537 个可检测光子。将该信号与实验的蒙特卡罗模拟进行比较。单个切伦科夫量热计探测器的信噪比预计为 18，并且使用像素化 LYSO 屏幕可实现 2% 的光谱分辨率。
Measuring signatures of strong-field quantum electrodynamics (SF-QED) processes in an intense laser field is an experimental challenge: it requires detectors to be highly sensitive to single electrons and positrons in the presence of the typically very strong x-ray and γ-photon background levels. In this paper, we describe a particle detector capable of diagnosing single leptons from SF-QED interactions and discuss the background level simulations for the upcoming Experiment-320 at FACET-II (SLAC National Accelerator Laboratory). The single particle detection system described here combines pixelated scintillation LYSO screens and a Cherenkov calorimeter. We detail the performance of the system using simulations and a calibration of the Cherenkov detector at the ELBE accelerator. Single 3 GeV leptons are expected to produce approximately 537 detectable photons in a single calorimeter channel. This signal is compared to Monte-Carlo simulations of the experiment. A signal-to-noise ratio of 18 in a single Cherenkov calorimeter detector is expected and a spectral resolution of 2% is achieved using the pixelated LYSO screens.
柯达
DOI：
--
发表时间：
1999
期刊：
Encyclopedic Dictionary of Archaeology
影响因子：
--
作者：
Yadong Luo
通讯作者：
Yadong Luo