Opportunities for Soft X-ray Science at PETRA IV

27 Sept 2017, 12:00 → 29 Sept 2017, 13:00 Europe/Berlin

SemRoom FLASH (28c) (DESY Hamburg)

Current planning for the PETRA IV project foresees a 6 GeV electron storage ring having about 1% of the current emittance, making it a perfect synchrotron radiation source also for the soft X-ray range. Here PETRA IV will offer a very high degree of coherence (90+ %), enabling true diffraction limited focussing, which will result in nm-scale focus sizes and enormous photon flux densities. The required optimal optics and mechanics will furthermore improve beamline parameters such as photon bandpass and photon beam stability.
The new opportunities offered by PETRA IV, particularly for the soft X-ray SR community, will be discussed in this workshop.
During the workshop science areas should be identified which could merit and require a dedicated soft X-ray beamline at PETRA IV.
Organizers: Kai Bagschik, Sadia Bari, Jens Buck, Leif Glaser, Matthias Kreuzeder, Christina Newiger, Jörn Seltmann, and Jens Viefhaus

Wednesday, 27 September

12:00 → 13:30 Registration

13:30 → 13:45 Welcome

Speaker: Christian Schroer (DESY/Universität Hamburg)

13:45 → 15:00 FACILITY TALKS

13:45 Challenges of ultimate storage ring design

Speaker: Ilya Agapov (DESY)

14:10 Soft X-ray Undulators

Speaker: Markus Tischer (DESY)

14:35 Pushing the limits of Soft X-ray Beamlines at DLSRs

Speaker: Jens Viefhaus (DESY/BESSY)

15:00 → 15:30 Coffee break

15:30 → 17:00 START SESSION

15:30 Soft X-ray Nanospectroscopy at PETRA IV

Speaker: Kai Rossnagel (CAU Kiel)

16:00 A superficial look at water

Speaker: Olle Bjoerneholm (Department of Physics and Astronomy, Uppsala (SWEDEN))

16:30 Coherent microscopy with soft X-rays at PETRA III

Speaker: Axel Rosenhahn (Ruhr-University, Bochum)

17:00 → 18:15 Poster session

17:00 Electronic structure of topological materials probed by soft X-ray photoelectron spectroscopy

Speaker: Sonja Schatz (Universität Würzburg)

17:00 High-resolution soft x-ray holographic microscopy of magnetic nanodot arrays

Speaker: Jochen Wagner (Uni Hamburg)

17:00 Imaging the Temporal Evolution of Molecular Orbitals during Ultrafast Dissociation

Speaker: Miriam Weller (IKF Uni Frankfurt)

17:00 Molecular frame photoelectron angular distributions in the high energy limit

Speaker: Isabel Vela-Perez (Goethe-Universität)

17:00 Multiple Ionization of Ne+ Ions by Photoabsorption Near the K Edge

Speaker: Ticia Buhr (I. Physikalisches Institut, Justus-Liebig-Universität Gießen)

17:00 Observation of electron back-to-back emission from the quasifree mechanism of helium at 800 eV photon energy

Speaker: Sven Grundmann (Goethe University)

17:00 Search for Circular Dichroism Effects in the Auger Decay of Methyloxirane

Speaker: Giammarco Nanlin (Goethe Univerity - IKF)

17:00 Soft X-ray STXM with Fluorescence – Limits for Biomedical Applications Now and with Petra IV

Speaker: Lars Lühl (Technische Universität Berlin)

17:00 Spatial coherence determination from the Fourier analysis of a resonant soft X-ray magnetic speckle pattern

Speaker: Kai Bagschik (DESY)

17:00 The Percival soft X-ray Imager P2M system

Speaker: Alessandro Marras (DESY)

18:15 → 20:15 Barbecue

Thursday, 28 September

09:00 → 10:30 LIQUID SYSTEMS

09:00 Opportunities in liquid-jet photoelectron spectroscopy

Speaker: Bernd Winter (Fritz-Haber-Institut, Berlin)

09:30 Hydrogen Bonding Structure of Aqueous Ammonia and Ammonium Probed with IR and X-ray Spectroscopy

Speaker: Maria Ekimova (Max-Born Institute, Berlin)

09:50 Opportunities for probing liquid interfaces at an advanced X-ray source

Speaker: Uwe Hergenhahn (Leibniz Institute of Surface Modification, Leipzig)

10:30 → 11:00 Coffee break

11:00 → 13:00 ATOMIC, MOLECULAR, AND OPTICAL PHYSICS

11:00 Imaging the correlated two-electron wave function of a hydrogen molecule

Speaker: Florian Trinter (Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Frankfurt am Main)

11:20 Prospects for Photoionization Experiments with Charged Particles at PETRA IV

Speaker: Stefan Schippers (Justus-Liebig-Universität Gießen, Gießen)

11:50 Soft X-ray AMO Experiments at SOLEIL - where do we go from here

Speaker: John Bozek (Synchrotron SOLEIL, Gif-sur-Yvette, France)

12:20 Petra IV - Soft X-rays: Future Opportunities for COLTRIMS measurements

Speaker: Till Jahnke (Uni Frankfurt, Frankfurt am Main)

13:00 → 14:30 Lunch break

14:30 → 16:00 RESONANT INELASTIC X-RAY SCATTERING

14:30 New concepts for efficient RIXS spectrometers

Speaker: Jens Rehanek (Paul-Scherrer-Institut, Villingen, SWITZERLAND)

15:00 A new instrument for q-dependent (in-) elastic scattering and applications

Speaker: Martin Beye (DESY)

15:20 The ChemRIXS as a possible end-station for a soft X-ray beamline at PETRA IV

Speaker: Philipp Busse (MPI bpC, Göttingen)

15:40 Directions for Soft X-ray RIXS in support of dynamic measurements

Speaker: Piter Miedema (DESY FS-FLASH)

16:00 → 16:30 Coffee break

16:30 → 18:30 ADVANCED SPECTROSCOPY

16:30 High-resolution photoemission in the soft and tender X-ray range

Speaker: Gerd Schönhense (Johannes Gutenberg Universität, Mainz)

17:00 Magnetic Nanospectroscopy at very low temperatures using soft X-rays

Speaker: Ivan Baev (Universität Hamburg, Hamburg)

17:30 Experiences with nanoARPES at the ALS in Berkeley

Speaker: Soeren Ulstrup (Aarhus University, Aarhus, DENMARK)

18:00 Three-dimensional Fermi surfaces from Diamond Light Source

Speaker: Moritz Hoesch (Oxford, UNITED KINGDOM)

Friday, 29 September

09:00 → 11:00 IMAGING

09:00 Soft X-Ray Nanoimaging at PETRA IV

Speaker: Thomas Wilhein (IXO, RheinAhrCampus Remagen, HS Koblenz, Remagen)

09:30 Scanning Soft X-ray Microscopy Techniques for High Brilliance Sources

Speaker: Markus Weigand (Max-Planck Institut für Intelligente Systeme, Stuttgart)

10:00 Probing deeply supercooled water in a jet

Speaker: Claudia Goy (Goethe-Universität Frankfurt, Frankfurt am Main)

10:20 New Science Opportunities with Coherent Soft X-Rays at PETRA IV

Speaker: Stefan Eisebitt (Max-Born Institute, Berlin)

11:00 → 11:30 Coffee break

11:30 → 12:30 Summary/Close-out