Two-color operation of a free-electron laser with a tilted beam

被引：22

作者：

Reiche, Sven ^{[1
]}

Prat, Eduard ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2016年 / 23卷

关键词：

free-electron laser; undulator beamline design; simulations; GENERATION;

D O I：

10.1107/S1600577516007189

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

With the successful operation of free-electron lasers (FELs) as user facilities there has been a growing demand for experiments with two photon pulses with variable photon energy and time separation. A configuration of an undulator with variable-gap control and a delaying chicane in the middle of the beamline is proposed. An injected electron beam with a transverse tilt will only yield FEL radiation for the parts which are close to the undulator axis. This allows, after realigning and delaying the electron beam, a different part of the bunch to be used to produce a second FEL pulse. This method offers independent control in photon energy and delay. For the parameters of the soft X-ray beamline Athos at the SwissFEL facility the photon energy tuning range is a factor of five with an adjustable delay between the two pulses from -50 to 950 fs.

引用

页码：869 / 873

页数：5

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