标题： 用于MAX IV实验室存储环的多功能纵向诊断的时间相关单光子计数 显示英文标题

标题： Time-Correlated Single-Photon Counting for versatile longitudinal diagnostics at the MAX IV Laboratory storage rings

摘要： 精确的电子束参数诊断是非常有价值的工具，并且在同步辐射光源的操作中是必不可少的。 一种可能的选项是利用发射的同步辐射进行非破坏性测量。 一种已在许多基于环形的同步辐射光源中使用的工具是时间相关单光子计数（TCSPC）。 它能够测量发射光子的到达时间分布，从而揭示填充模式，即存储环中电子束团上的电荷分布。 在MAX IV，安装了两个TCSPC装置，并进一步开发了分析方法，以允许对单个束团的纵向轮廓进行测量。 该分析作为Tango设备在加速器控制系统中可用，并持续提供例如每个束团的束长以及束团轮廓和相位。 这显著提高了诊断能力，例如在存在兰道腔的情况下，兰道腔在新型第四代同步辐射光源中变得越来越常见。 显示英文摘要

摘要： Precise diagnostic on the electron beam parameters is a very valuable tool and essential in the operation of synchrotron light sources. One possible option is to employ the emitted synchrotron radiation for non-destructive measurements. A tool, which has been used in many ring based synchrotron light sources is Time-Correlated Single-Photon Counting (TCSPC). It allows to measure the arrival time distribution of the emitted photons and by that reveals the filling pattern, i.e., the charge distribution onto the electron bunches stored in the storage ring. At MAX IV, two TCSPC setups were installed and the analysis was developed further to also allow for the measurement of the longitudinal profiles of the individual bunches. The analysis is available as a Tango device in the accelerator control system and continuously provides, for example, the bunch length of each bunch as well as the bunch profiles and phases. This improved the diagnostic capabilities significantly, for example, in the presence of Landau cavities, which are becoming increasingly more common in new fourth-generation synchrotron light sources.