Demonstration of two-color x-ray free-electron laser pulses with a sextupole magnet

被引：14
|
作者：
Dijkstal, P. [1 ,2 ]
Malyzhenkov, A. [1 ]
Reiche, S. [1 ]
Prat, E. [1 ]
机构：
[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[2] Swiss Fed Inst Technol, Dept Phys, CH-8092 Zurich, Switzerland
来源：
PHYSICAL REVIEW ACCELERATORS AND BEAMS | 2020年 / 23卷 / 03期
基金：
瑞士国家科学基金会;
关键词：
ALIGNMENT;
D O I：
10.1103/PhysRevAccelBeams.23.030703
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present measurements of two-color x-ray free electron laser (FEL) pulses generated with a novel scheme utilizing a sextupole magnet. The sextupole, in combination with a standard orbit control tool, is used to suppress the radiation from the bunch core, while keeping the head and the tail of the beam lasing, each at a different photon energy. The method is simple, cost-effective and applicable at any repetition rate. We demonstrate the tunability of the scheme and discuss its advantages and practical limitations.
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页数：6
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