Longitudinal phase space diagnostics with a nonmovable corrugated passive wakefield streaker

IF 1.5 3区物理与天体物理 Q3 PHYSICS, NUCLEAR

Physical Review Accelerators and Beams Pub Date : 2024-05-20 DOI:10.1103/physrevaccelbeams.27.050702

Philipp Dijkstal, Weilun Qin, Sergey Tomin

引用次数: 0

Abstract

Time-resolved diagnostics at free-electron laser (FEL) facilities, in particular electron beam longitudinal phase space (LPS) and FEL power profile measurements, provide information highly valuable for users, machine development studies, and beam setup. We investigate the slice energy resolution of passive streaker setups, in particular the effect of an energy chirp on the measured slice energy spread. Downstream of the hard x-ray SASE2 beamline at the European XFEL, these measurements are enabled by a single-plate nonmovable passive wakefield streaker, essentially a rectangular corrugated plate placed inside a vacuum chamber. We show measurements with a time resolution down to a few femtoseconds and an energy resolution down to a few MeVs.

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利用不可移动的波纹状被动若飞条纹器进行纵向相空间诊断

自由电子激光（FEL）设备的时间分辨诊断，特别是电子束纵向相位空间（LPS）和FEL功率曲线测量，为用户、设备开发研究和光束设置提供了非常有价值的信息。我们研究了被动条纹器设置的切片能量分辨率，特别是能量啁啾对测量切片能量分布的影响。在欧洲 XFEL 的硬 X 射线 SASE2 光束线下游，这些测量由单板不可移动的被动式唤醒场条纹器实现，该条纹器基本上是一个放置在真空室中的矩形波纹板。我们展示了时间分辨率低至几飞秒、能量分辨率低至几 MeV 的测量结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Review Accelerators and Beams Physics and Astronomy-Surfaces and Interfaces

CiteScore

3.90

自引率

23.50%

发文量

158

审稿时长

23 weeks

期刊介绍： Physical Review Special Topics - Accelerators and Beams (PRST-AB) is a peer-reviewed, purely electronic journal, distributed without charge to readers and funded by sponsors from national and international laboratories and other partners. The articles are published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. It covers the full range of accelerator science and technology; subsystem and component technologies; beam dynamics; accelerator applications; and design, operation, and improvement of accelerators used in science and industry. This includes accelerators for high-energy and nuclear physics, synchrotron-radiation production, spallation neutron sources, medical therapy, and intense-beam applications.