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@PHDTHESIS{Huxold:902255,
      author       = {Huxold, Lukas},
      othercontributors = {Engels, Ralf W. and Büscher, Markus},
      title        = {{A} {L}amb-{S}hift {P}olarimeter for a {M}olecular {B}eam
                      {S}ource and {F}urther {A}pplications},
      school       = {HHU Düsseldorf},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum},
      reportid     = {FZJ-2021-04125},
      pages        = {148},
      year         = {2021},
      note         = {Dissertation, HHU Düsseldorf, 2021},
      abstract     = {For decades, Lamb-shift polarimeters have been used
                      successfully to measure the nuclearspin polarization of
                      hydrogen and deuterium atomic beams as well as proton and
                      deuteronbeams. In particular, they are used for polarized
                      atomic beam sources, which in turnare used as sources for
                      accelerators or as internal gas targets in collision
                      experiments. Inprevious experiments it has been shown that
                      Lamb-shift polarimeters are also suitablefor measuring the
                      nuclear spin polarization of hydrogen and deuterium
                      molecules andmolecular ions. Since polarized atomic beam
                      sources are largely exhausted in terms oftheir intensity and
                      since nuclear spin-polarized molecules are advantageous in
                      variousapplications, the development of a polarized
                      molecular beam source was started at theBudker Institute for
                      Nuclear Physics in Novosibirsk. It has already been
                      demonstratedthat with a prototype of such a source, parts of
                      the molecular beam can be focused,which is an indirect proof
                      of successful polarization of the beam.In order to confirm
                      this result with a direct polarization measurement and to
                      determinethe degree of polarization, a Lamb-shift
                      polarimeter was build at the research centerJülich, in
                      cooperation of the Peter-Grünberg Institute, the Institute
                      for Nuclear Physicsand the Institute for Laser and
                      Plasma-Physics of the Heinrich-Heine University
                      Düsseldorf.After checking the components and optimizing the
                      magnetic field homogeneity of theSpinfilter in Jülich, the
                      Lamb-shift polarimeter was sent to Novosibirsk and connected
                      tothe source. The functionality of the polarimeter has been
                      shown through first measurementswith atomic beams.In
                      addition, a Lamb-shift polarimeter setup in Jülich was
                      supplemented by a secondSpinfilter and two coils to carry
                      out experiments with Sona transitions in the 2S1/2 stateof
                      hydrogen atoms. It turned out that such a setup is capable
                      of performing spectroscopywith quantum energies in the order
                      of 10 neV.},
      cin          = {IKP-2 / PGI-6},
      cid          = {I:(DE-Juel1)IKP-2-20111104 / I:(DE-Juel1)PGI-6-20110106},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF4-612) / 621 -
                      Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-612 / G:(DE-HGF)POF4-621},
      typ          = {PUB:(DE-HGF)11},
      url          = {https://juser.fz-juelich.de/record/902255},
}