Dresden 2020 – scientific programme

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O: Fachverband Oberflächenphysik

O 62: Focus Session: Big Data in Aquisition in ARPES (joint session O/CPP)

O 62.8: Talk

Wednesday, March 18, 2020, 12:45–13:00, REC C 213

Concept for Handling of Photoemission Data at European XFEL — •Markus Scholz¹, Dmytro Kutnyakhov², Michael Heber², Manuel Izquierdo¹, Hans Fangohr¹, Yves Acremann⁴, Kai Rossnagel³, Anders Madsen¹, and Serguei Molodtsov¹ — ¹European XFEL Facility, Holzkoppel 4, 22869 Schenefeld, Germany — ²Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany — ³Ruprecht-Haensel-Labor, Christian-Albrechts-Universität zu Kiel and Deutsches Elektronen-Synchrotron DESY, 24098 Kiel and 22607 Hamburg, Germany — ⁴Laboratorium für Festkörperphysik, ETH Zürich, 8093 Zürich, Switzerland

European X-ray Free Electron Laser (EuXFEL) is currently the world's biggest, brightest and highest repetition rate XFEL providing up to 27000 pulses/second. The planned open port named "Soft X-ray Port" (SXP), will allow time-resolved X-ray photoelectron spectroscopy (TR-XPES) experiments. In this contribution I will present how near-online analysis of photoemission data based on Jupyter notebooks could be realized and embedded in the EuXFEL software framework. For compute-intensive notebooks, it is possible to allocate dedicated nodes with user-specified hardware configuration from the Maxwell computer cluster to a running JupyterHub session. This is of particular value due to the size of data sets and the the remotely accessible analysis.