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Dresden 2020 – scientific programme

The DPG Spring Meeting in Dresden had to be cancelled! Read more ...

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 12: Electron Accelerator

AKBP 12.4: Talk

Wednesday, March 18, 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 Albert21Center 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

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