Seminar: Proposal for a femtosecond X-ray Compton source at Uppsala University

  • Date: 13 June 2023, 11:15–12:30
  • Location: Ångström Laboratory, Å92110
  • Type: Seminar
  • Lecturer: Vitaliy Goryashko
  • Organiser: Division of Materials Theory, Department of Physics and Astronomy.
  • Contact person: Jorge Cayao


Developments of new research areas and breakthroughs in science are often linked to the progress in new instrumentation. I will briefly present scientific opportunities and the proposed layout of an X-ray Compton source based on superconducting accelerator technology. The X-ray source is envisioned to provide scientists at Uppsala University and collaborating research groups with 100 kHz femtosecond flashes of X-ray radiation for discovering novel materials systems, investigating biological structures, and characterizing catalysts and nanostructures. The X-ray source is envisioned to consist of a normal conducting ultrahigh frequency electron injector, a 1.3 GHz superconducting linear accelerator, a 5 kW IR laser based on thin-disk technology, and two X-ray beamlines. X-ray pulses in a range 2-8 keV with a duration of 200 fs FWHM and a source size of 3 microns, containing 10^6 photons per shot into 1% BW are demonstrated through start-to-end numerical simulations. The X-ray source combined with a momentum microscope for performing time-resolved ARPES is considered to be a powerful tool for studying quantum materials for new sustainable technologies.

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