News

Ursula Keller wins “Swiss Nobel” Marcel Benoist Prize- for pioneering work in ultrafast lasers

Farewell: the NCCR MUST ended - on June 30, 2022

MUST2022 Conference- a great success!

New scientific highlights- by MUST PIs Wörner, Chergui, and Richardson

FELs of Europe prize for Jeremy Rouxel- “Development or innovative use of advanced instrumentation in the field of FELs”

Ruth Signorell wins Doron prizefor pioneering contributions to the field of fundamental aerosol science

New FAST-Fellow Uwe Thumm at ETH- lectures on Topics in Femto- and Attosecond Science

International Day of Women and Girls in Science- SSPh asked female scientists about their experiences

New scientific highlight- by MUST PIs Milne, Standfuss and Schertler

EU XFEL Young Scientist Award for Camila Bacellar,beamline scientist and group leader of the Alvra endstation at SwissFEL

Prizes for Giulia Mancini and Rebeca Gomez CastilloICO/IUPAP Young Scientist Prize in Optics & Ernst Haber 2021

Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List- for the development of asymmetric organocatalysis

Hans Jakob Wörner invited to give the „New Horizons Solvay Lectures” - online, October 5, 12 and 19

Unusual keynote talk at an international scientific conference- Do photons show gender bias?

NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules

Femtosecond Hard–X-Ray Beamline at SLS

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Location

Contact

MicroXAS/FEMTO Beamline (X05LA)
Swiss Light Source
Paul Scherrer Institut
5232 Villigen

Paul Beaud
Tel +41 56 310 41 21
paul.beaud@psi.ch

Gerhard Ingold
Tel. +41 56 310 2665
gerhard.ingold@psi.ch

Setup / Configuration

At the Swiss Light Source we operate a tunable femtosecond undulator x-ray source driven by an initial 50 fs laser pulse employing the laser-electron slicing technique (1). This source of highly stable, ultrashort x-ray pulses makes it possible to perform x-ray diffraction (2) and x-ray absorption (3) experiments with time resolution of 150 - 200 fs.

Energy range	4.2 - 14 keV
Flux (at 5 keV)	4 x 10⁵ ph/s/0.1% BW
Bandwidth options	1.3%, 0.045%, 0.015%
Pulse duration	< 120 fs
Repetition rate	2 kHz
Polarization	linear horizontal
Energy resolution (with Si(111) monochromator)	0.02%
Halo background at 6 keV (monochromatic)	< 4 x 10^-2

Literature

P. Beaud, S. L. Johnson, A. Streun, R. Abela, D. Abramsohn, D. Grolimund, F. Krasniqi, T. Schmidt, V. Schlott, G. Ingold, Phys. Rev. Lett. 99, 174801 (2007).
S.L. Johnson, P. Beaud, C.J. Milne, F.S. Krasniqi, E.S. Zijlstra, M.E. Garcia, M. Kaiser, R. Abela, and G. Ingold, Phys. Rev. Lett. 100, 155501 (2008).
C. Bressler, C. Milne, V. T. Pham, A. ElNahhas, R.M. van der Veen, W. Gawelda, S. L. Johnson, P. Beaud, D. Grolimund, C. Borca, G. Ingold, R. Abela, and M. Chergui, Science 323, 489 (2009).

The image on the left shows a typical setup for performing diffraction experiments at low temperatures. The hexapod sample manipulator enters via a rotary vacuum feedthrough into a vacuum chamber equipped with a large Kapton window enabling the diffracted x-rays to exit the chamber. The x-rays and laser pump pulses enter the chamber from the left. Avalanche photo diodes and/or a gatable 2-D Pilatus detector are available for detection of the diffracted x-rays with single photon counting resolution.

FEMTO Endstation at SLS »»

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