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A compact and cost-effective hard X-ray free-electron laser driven by a high-brightness and low-energy electron beam
Nature Photonics ( IF 32.3 ) Pub Date : 2020-11-09 , DOI: 10.1038/s41566-020-00712-8
Eduard Prat , Rafael Abela , Masamitsu Aiba , Arturo Alarcon , Jürgen Alex , Yunieski Arbelo , Christopher Arrell , Vladimir Arsov , Camila Bacellar , Carl Beard , Paul Beaud , Simona Bettoni , Roger Biffiger , Markus Bopp , Hans-Heinrich Braun , Marco Calvi , Ariana Cassar , Tine Celcer , Majed Chergui , Pavel Chevtsov , Claudio Cirelli , Alessandro Citterio , Paolo Craievich , Marta Csatari Divall , Andreas Dax , Micha Dehler , Yunpei Deng , Alexander Dietrich , Philipp Dijkstal , Roberto Dinapoli , Sladana Dordevic , Simon Ebner , Daniel Engeler , Christian Erny , Vincent Esposito , Eugenio Ferrari , Uwe Flechsig , Rolf Follath , Franziska Frei , Romain Ganter , Terence Garvey , Zheqiao Geng , Alexandre Gobbo , Christopher Gough , Andreas Hauff , Christoph P. Hauri , Nicole Hiller , Stephan Hunziker , Martin Huppert , Gerhard Ingold , Rasmus Ischebeck , Markus Janousch , Philip J. M. Johnson , Steven L. Johnson , Pavle Juranić , Mario Jurcevic , Maik Kaiser , Roger Kalt , Boris Keil , Daniela Kiselev , Christoph Kittel , Gregor Knopp , Waldemar Koprek , Michael Laznovsky , Henrik T. Lemke , Daniel Llorente Sancho , Florian Löhl , Alexander Malyzhenkov , Giulia Fulvia Mancini , Roman Mankowsky , Fabio Marcellini , Goran Marinkovic , Isabelle Martiel , Fabian Märki , Christopher J. Milne , Aldo Mozzanica , Karol Nass , Gian Luca Orlandi , Cigdem Ozkan Loch , Martin Paraliev , Bruce Patterson , Luc Patthey , Bill Pedrini , Marco Pedrozzi , Claude Pradervand , Peter Radi , Jean-Yves Raguin , Sophie Redford , Jens Rehanek , Sven Reiche , Leonid Rivkin , Albert Romann , Leonardo Sala , Mathias Sander , Thomas Schietinger , Thomas Schilcher , Volker Schlott , Thomas Schmidt , Mike Seidel , Markus Stadler , Lukas Stingelin , Cristian Svetina , Daniel M. Treyer , Alexandre Trisorio , Carlo Vicario , Didier Voulot , Albin Wrulich , Serhane Zerdane , Elke Zimoch

We present the first lasing results of SwissFEL, a hard X-ray free-electron laser (FEL) that recently came into operation at the Paul Scherrer Institute in Switzerland. SwissFEL is a very stable, compact and cost-effective X-ray FEL facility driven by a low-energy and ultra-low-emittance electron beam travelling through short-period undulators. It delivers stable hard X-ray FEL radiation at 1-Å wavelength with pulse energies of more than 500 μJ, pulse durations of ~30 fs (root mean square) and spectral bandwidth below the per-mil level. Using special configurations, we have produced pulses shorter than 1 fs and, in a different set-up, broadband radiation with an unprecedented bandwidth of ~2%. The extremely small emittance demonstrated at SwissFEL paves the way for even more compact and affordable hard X-ray FELs, potentially boosting the number of facilities worldwide and thereby expanding the population of the scientific community that has access to X-ray FEL radiation.



中文翻译:

由高亮度,低能量的电子束驱动的紧凑且经济高效的硬X射线自由电子激光器

我们展示了SwissFEL的第一个激光结果,这是一种最近在瑞士Paul Scherrer研究所投入使用的硬X射线自由电子激光器(FEL)。SwissFEL是一种非常稳定,紧凑且具有成本效益的X射线FEL装置,由低能量和超低发射率电子束通过短周期波荡器驱动。它以1-Å波长提供稳定的硬X射线FEL辐射,脉冲能量超过500μJ,脉冲持续时间约30 fs(均方根),光谱带宽低于密尔级。使用特殊的配置,我们产生的脉冲短于1 fs,在不同的设置下,宽带辐射的带宽达到前所未有的2%。在SwissFEL上展示的极小的发射率为更紧凑,价格更便宜的硬X射线FEL铺平了道路,

更新日期:2020-11-09
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