Talk (non-conference)

PUBDB-2022-08196

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png First Lasing of the THz SASE FEL at PITZ

Boonpornprasert, P. (Corresponding author)DESY*

2022

Abstract: Research and development of an accelerator-based THz source prototype for pump-probe experiments at the European XFEL are ongoing at the Photo Injector Test Facility at DESY in Zeuthen (PITZ). The existing accelerator was modified and extended downstream into a tunnel annex for the proof-of-principle experiments on high-power THz pulse generation. A Self-Amplified Spontaneous Emission (SASE) FELis used to generate the THz pulses using an LCLS-I undulator (on loan from SLAC) driven by an electron bunch from the PITZ accelerator. A beam energy of ~17 MeV is used to generate THz radiation with acenter wavelength of 100 μm. The installation of the first THz beamline setup was finished in summer of 2022, and commissioning with the electron beam started. A specially developed procedure for high charge beam matching into the undulator was successfully tested, resulting in the first THz pulse generation. First measurements of the THz generation using pyrodetectors for 1 nC, 2 nC and 3 nC bunches have been taken. The statistics properties analysis reflects the expected SASE performance. This contribution presents and discusses the experience and results of the first commissioning and the first measurements of the THz SASE FEL at PITZ.

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Contributing Institute(s):

1. Technologie (Z_PITZ)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)

Experiment(s):

1. Photo Injector Test Facility

Appears in the scientific report 2022

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