Perspectives and new opportunities for X-ray absorption spectroscopy at PETRA IV

29 Jun 2020, 09:00 → 30 Jun 2020, 17:00 Europe/Berlin

online workshop (Zoom)

DESY is planning to upgrade the PETRA III storage ring with the aim to reduce the horizontal emittance of the electron beam significantly. This has a direct impact on the x-ray beam, which will enable new and exciting experiments. In order to inform current and future users of our XAFS beamlines about the new properties of the x-ray beam, possible novel experimental methods, and various other options, we invite you to participate at an online workshop about the options for X-ray Absorption Spectroscopy (XAS) at PETRA IV at DESY.

The process for selecting new beamlines will involve two steps: The first step was already started and involves a Call for Scientific Instrumentation Proposals. Current and future users of synchrotron radiation are asked to submit proposals for experiments, which they would like to perform at a future PETRA IV beamline. This proposal include requirements for the properties of the incident x-ray beam and other technical parameters. It is important to stress that it is perfectly fine and encouraged to also conceive and submit proposals for beamlines/experiments that do not require the extreme coherence or beamsize properties of PETRA IV.

In a second step all proposals will be reviewed by a panel, that will bundle groups of proposals with similar requirements to future beamlines. This suite of beamlines will be discussed with DESY’s Photon Science Committee and the PETRA IV steering and management boards, and re-iterated if necessary. The resulting list of beamlines will finally be submitted to the DESY directorate, who will make the final decision about the basket of beamlines and their priorities. The selection of instruments will be based on several criteria like complex science,which can only be done at PETRA IV, or high scientific output, or industrial relevance, among others.

The planned workshop is intended to inform the XAFS-community about the new experimental opportunities and to discuss the science cases for experiments at PETRA IV. Based on the information, which will be provided in this XAS-workshop, you can hopefully prepare more specific proposals for discussion during the science-related workshops in October and November 2020.

Monday 29 June

09:00 → 10:30 Opening: Scope and Goals of Workshop, Introduction into PETRA IV

Conveners: Dr Edmund Welter (Deutsches Elektronen Synchrotron), Dr Wolfgang Caliebe (DESY)

09:00 Scope and Goals of Workshop

Speaker: Dr Edmund Welter (Deutsches Elektronen Synchrotron)

09:30 Introduction to PETRA IV

Speaker: Dr Wolfgang Caliebe (DESY)

10:30 → 11:00 Break

11:00 → 12:30 Science Field II: Time Resolved Experiments

Conveners: Dr Janis Timoshenko (Fritz-Haber-Institut), Prof. Matthias Bauer (Uni. Paderborn)

13:30 → 15:00 Science Field I: Applications of various hard x-ray spectroscopy methods in high pressure research and environmental sciences

Conveners: Dr Christian Sternemann (Technische Universität Dortmund), Prof. Max Wilke (Uni. Potsdam)

13:30 Microspectroscopy in Earth and Environmental Sciences

Speaker: Max Wilke (Uni Potsdam)

14:10 High pressure and high temperature: Spectroscopy of glasses and melts at Petra IV

Speaker: Dr Christian Sternemann (Technische Universität Dortmund)

15:30 → 17:00 Science Field III: High Precision Measurements

Conveners: Prof. Alexei Kuzmin (Uni. Riga), Prof. Hendrik Küpper (JCU)

Tuesday 30 June

09:00 → 10:30 XAFS Ptychography

Convener: Prof. Yukio Takahashi (Tohoku University)

11:00 → 12:30 Science Field V: Energy Storage and Energy Conversion

Convener: Dr Ditty Dixon (CERI)

13:30 → 15:00 Science Field VI: EXAFS and Imaging

Convener: Dr Thomas Sheppard (Karlsruhe Institute of Technology)

15:30 → 17:00 Conclusions and Further Steps