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@PHDTHESIS{Menz:357192,
      author       = {Menz, Esther Babette},
      othercontributors = {Jena, Thüringer Universitäts- und Landesbibliothek and
                          Stöhlker, Thomas and Schmidt, Henning and Pajek, Marek},
      title        = {{P}reparation and realisation of first dielectronic
                      recombination experiments at {CRYRING}@{ESR}},
      school       = {Friedrich Schiller University Jena},
      type         = {Dissertation},
      publisher    = {Friedrich Schiller University Jena},
      reportid     = {GSI-2025-00335},
      pages        = {125 p.},
      year         = {2024},
      note         = {Dissertation, Friedrich Schiller University Jena, 2024},
      abstract     = {Dielectronic recombination (DR) is the resonant capture of
                      a free electron by an ion. It is a fundamental process in
                      determining the charge-state balance of low-temperature
                      plasma environments, which can be found in a wide range of
                      astrophysical objects such as planetary nebulae, active
                      galactic nuclei and supernova remnants. Accurate rates of DR
                      are therefore required to model these objects and correctly
                      interpret astronomical observations. While theory can
                      nowadays predict many DR transitions quite reliably, in
                      particular for high centre-of-mass energies, transitions at
                      low energies (ie a few eV and below) are less easy to
                      predict in terms of their position and strength. In order to
                      provide reliable data for plasma modelling, DR experiments
                      are carried out at the electron coolers of heavy-ion storage
                      rings which provide cooled merged-beam electron targets that
                      allow for precise measurements of DR spectra. At the
                      CRYRING@ESR storage ring at GSI/FAIR a new setup for DR
                      measurements has been installed and taken into operation in
                      the past few years. Making use of the ultra-cold electron
                      beam and the wide variety of available ions in different
                      charge states, we have implemented DR experiments to explore
                      various physics cases. This includes both recombination rate
                      measurements with an astrophysical motivation as described
                      above, as well as the use of DR as a spectroscopic tool to
                      probe the atomic structure of heavy highly-charged ions in
                      order to benchmark atomic theory. The focus of this work is
                      on DR measurements on neon ions: The first DR experiment
                      conducted at CRYING@ESR was a test measurement on Li-like
                      neon, which reproduced data obtained in a previous CRYRING
                      experiment in Stockholm. As part of a new programme of
                      astrophysically motivated DR campaigns, low-energy DR of
                      O-like neon was then measured and the merged-beam
                      recombination rate coefficient (MBRRC) and plasma
                      recombination rate coefficient (PRRC) were calculated.},
      keywords     = {Atomphysik (Other) / Dielektronische Rekombination (Other)
                      / Speicherring (Other) / 530 (Other)},
      cin          = {PTS / SPARC@FAIR},
      cid          = {I:(DE-Ds200)PTS-20220701OR463 /
                      I:(DE-Ds200)Coll-FAIR-SPARC},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631)},
      pid          = {G:(DE-HGF)POF4-631},
      experiment   = {EXP:(DE-Ds200)E140-20221208},
      typ          = {PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:gbv:27-dbt-64496-4},
      doi          = {10.22032/DBT.64496},
      url          = {https://repository.gsi.de/record/357192},
}