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@INPROCEEDINGS{Boonpornprasert:491004,
      author       = {Boonpornprasert, Prach},
      title        = {{F}irst {L}asing of the {TH}z {SASE} {FEL} at {PITZ}},
      school       = {PITZ},
      reportid     = {PUBDB-2022-08196},
      year         = {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.},
      month         = {Sep},
      date          = {2022-09-26},
      organization  = {The 8th annual meeting of the
                       programme Matter and Technologies (MT),
                       Hamburg (Germany), 26 Sep 2022 - 27 Sep
                       2022},
      cin          = {$Z_PITZ$},
      cid          = {$I:(DE-H253)Z_PITZ-20210408$},
      pnm          = {621 - Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-621},
      experiment   = {EXP:(DE-H253)PITZ-20150101},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://bib-pubdb1.desy.de/record/491004},
}