A simple method for timing an XFEL source to high-power lasers

被引：11

作者：

Geloni, Gianluca ^{[1
]}

Saldin, Evgeni ^{[1
]}

Schneidmiller, Evgeni ^{[1
]}

Yurkov, Mikhail ^{[1
]}

机构：

[1] DESY, D-2000 Hamburg, Germany

来源：

OPTICS COMMUNICATIONS | 2008年 / 281卷 / 14期

关键词：

X-ray free-electron laser (XFEL); synchronization; longitudinal impedance; space-charge;

D O I：

10.1016/j.optcom.2008.03.023

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a technique for timing an X-ray free-electron laser (XFEL) to a high-power conventional laser with femtosecond accuracy, yielding the relative jitter between pump and X-ray probe, and allowing sorting of experimental results over a certain time window. The same electron bunch is used to produce both an XFEL pulse and an ultrashort optical pulse by means of an optical radiator downstream of the X-ray undulator. Being produced by the same electron bunch, these pulses are perfectly synchronized. Cross-correlation techniques will allow to determine relative jitter between the optical pulse (and, thus, the XFEL pulse) and a pulse from an external pump-laser. Technical realization of the proposed timing scheme uses an optical-replica synthesizer setup to be installed after the final bunch-compression stage of the XFEL for electron bunch diagnostics purposes. A number of critical issues are quantitatively analyzed. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3762 / 3770

页数：9

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