Speaker
Description
At the Photo Injector Test facility at DESY in Zeuthen (PITZ) 22 MeV, high brightness electron beams are generated to serve mainly as a test facility for e.g. the European XFEL. Low emittance beams with bunch charges of less than a pC up to several nC are generated in an L-band photogun, which can provide bunch trains (4.5 MHz bunch repetition rate) of up to 1 ms in length at 10 Hz repetition rate. The three pillars of operation are:
1) R&D on high brightness photoinjectors for European XFEL: Main work topics are photocathodes, laser pulse shaping, machine learning, and operations improvements.
2) THz SASE FEL: Beams with a bunch charge of up to several nC are transported through an undulator to generate THz radiation at wavelengths around 100 µm with pulse energies of more than 100 µJ. Characterization of the THz output includes a FTIR spectrometer, a THz camera and a Michelson interferometer.
3) Radiation biology: In a second beamline the electron bunches are transported through a thin exit window to an in-air experimental station for in vitro and in vivo irradiations providing ultra-high dose rates over a worldwide uniquely wide parameter range, with the goal to systematically study the FLASH effect in order to find the underlying principle, which is yet unknown.
Funding Agency
This work was supported by the European XFEL research and development program.
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