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[Fizinfo] Szemináriumok - Seminars: Bortel Gábor

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  • From: Szeminárium koordinátor <sem-admin AT>
  • To: SZFI User <szfkiuser AT>,Fizinfo <fizinfo AT>
  • Cc: Fizinfo <fizinfo AT>
  • Subject: [Fizinfo] Szemináriumok - Seminars: Bortel Gábor
  • Date: Thu, 25 Apr 2024 06:00:01 +0200 (CEST)
  • Authentication-results: (amavisd-new); dkim=pass (1024-bit key) reason="pass (just generated, assumed good)"

SZFI SeminarBortel GáborHUN-REN Wigner RCP SZFIAtomic Structure in
FemtosecondsTuesday, 30 April 2024, 10:00, KFKI Campus, Bldg. 1, 2nd floor,
Conference RoomX-ray free electron lasers (XFELs) provide 10–100 fs long
pulses containing 1012–1013 photons in the 5–15 keV photon energy range.
Although such a pulse contains comparable number of photons to those that are
used in hours-long single crystal diffraction experiments, the conventional
experimental techniques are not suitable for measurements using a single XFEL
pulse. To determine the 3D atomic structure of crystalline materials using a
single XFEL pulse, new measurement techniques must be developed. X-ray
fluorescent atoms within a crystalline structure, used as secondary X-ray
sources for diffraction result in Kossel lines instead of Bragg reflections.
In this talk I will explain what the fundamental differences are and why it
is necessary to change from Bragg reflections to Kossel lines in an
ultrashort single-pulse diffraction measurement. I will describe the
experimental details, show the steps of structure solution and the results of
our demonstration experiment performed at the European XFEL [Nature
Communications (2024) 15:970.].&nbsp;Minden érdeklődőt szívesen látunk! -
Everyone is welcome to attend.Attila Nagysem-admin AT

  • [Fizinfo] Szemináriumok - Seminars: Bortel Gábor, Szeminárium koordinátor, 04/25/2024

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