22–26 Aug 2022
Trieste Convention Centre
Europe/Zurich timezone

Development of a Photoelectron Spectrometer for Hard X-Ray Photon Diagnostics at the European XFEL

WEP42
24 Aug 2022, 16:00
1h 30m
Exhibition Hall (Trieste Convention Centre)

Exhibition Hall

Trieste Convention Centre

Contributed Poster Photon beamline instrumentation & undulators Wednesday posters

Speakers

Florian Dietrich (European XFEL GmbH) Jan Grünert (European X-Ray Free-Electron Laser) Jia Liu (European XFEL GmbH) Joakim Laksman (European X-Ray Free-Electron Laser) Marc Planas (European X-Ray Free-Electron Laser) Naresh Kujala (European X-Ray Free-Electron Laser) Randeer Pratap Gautam (European X-Ray Free-Electron Laser)Dr Sonia Francoual (European XFEL GmbH) Theophilos Maltezopoulos (European XFEL GmbH) Wolfgang Freund (European X-Ray Free-Electron Laser)

Description

Development and characterization of an angle-resolved photo-electron spectrometer, based on the electron Time-of-Flight concept, designed for hard X-ray photon diagnostics at the European free-electron laser is described. The objective with the instrument is to provide beamline users and operators with pulse resolved, non-invasive spectral distribution diagnostics, which in the hard X-ray regime is a challenge due to the poor cross-section and often very high kinetic energy of photo electrons for the available target gases. In this contribution we describe development of the device, including electron trajectory simulations, and first tests with hard X-rays at the PETRA III synchrotron where we have characterized the performance and optimized the voltage settings for resolution and electron detection efficiency. We demonstrate a resolving power of better than 5 eV up to at least 20 keV photon energy.

I have read and accept the Privacy Policy Statement Yes

Author

Joakim Laksman (European X-Ray Free-Electron Laser)

Co-authors

Florian Dietrich (European XFEL GmbH) Jan Grünert (European X-Ray Free-Electron Laser) Jia Liu (European XFEL GmbH) Marc Planas (European X-Ray Free-Electron Laser) Naresh Kujala (European X-Ray Free-Electron Laser) Randeer Pratap Gautam (European X-Ray Free-Electron Laser) Dr Sonia Francoual (European XFEL GmbH) Theophilos Maltezopoulos (European XFEL GmbH) Wolfgang Freund (European X-Ray Free-Electron Laser)

Presentation materials

There are no materials yet.

Proceedings

Paper