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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 12: Electron Accelerator
AKBP 12.4: Vortrag
Mittwoch, 18. März 2020, 15:45–16:00, MOL 213
Status of the Conceptual Design of Ultrafast Electron Diffraction at DELTA — •Daniel Krieg1, Shaukat Khan1, Klaus Sokolowski-Tinten2, and Thies Johannes Albert2 — 1Center for Synchrotron Radiation, TU Dortmund University, Dortmund, Germany — 2University Duisburg-Essen, Duisburg, Germany
Ultrafast electron diffraction (UED) is a pump-probe technique that combines sub-angstrom De-Broglie wavelengths of MeV electrons with a femtosecond time resolution. Therefore, an ultrashort pump laser adjustable in photon energy, electron bunches with small emittances, ultrashort length and typically charges well below 1pC, as well as an excellent synchronization system are required. UED systems based on a radiofrequency photocathode gun offer advantages regarding emittance and bunch length compared to electrostatic keV systems. Hence, providing more electrons per bunch is possible. Furthermore, the longer mean free path of MeV electrons allows for thicker samples and thus a broader range of possible materials. In this talk, latest results on the conceptual design of a university-based UED facility with ultrashort and low-emittance MeV electron bunches are presented.
Funded by MERCUR Pr-2017-0002