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@PHDTHESIS{Rastorguev:642214,
      author       = {Rastorguev, Daniil},
      othercontributors = {Schütze, Paul and Lipka, Katerina},
      title        = {{E}nsuring superior performance: {C}haracterizations of
                      novel silicon detectors for {H}igh-{L}uminosity {LHC} and
                      beyond},
      school       = {Bergische Universität Wuppertal},
      type         = {Dissertation},
      address      = {Hamburg},
      publisher    = {Verlag Deutsches Elektronen-Synchrotron DESY},
      reportid     = {PUBDB-2025-05410, DESY-THESIS-2025-022},
      series       = {DESY-THESIS},
      pages        = {187},
      year         = {2025},
      note         = {Dissertation, Bergische Universität Wuppertal, 2025},
      abstract     = {Modern particle physics is extremely reliant on advanced
                      instrumentation, in particular, detectors. One of the key
                      technologies for current and future experiments is
                      semiconductor detectors. As experiments require higher and
                      higher performance of detectors, continuous $R\&D$ is
                      necessary to refine designs and improve performance. The
                      present thesis encompasses diverse $R\&D$ efforts on novel
                      silicon detectors and discusses particular detector testing
                      methods, with the two main research directions being
                      developments of sensor characterization techniques by the
                      means of pulsed lasers, and developments for the Phase-2
                      upgrade of the CMS experiment at the LHC.The first part of
                      the thesis is devoted to the laser techniques. The
                      commissioning and upgrade of the Laserbox, an experimental
                      setup for testing silicon sensors via charge injection with
                      pulsed lasers, is presented. Furthermore, an approach for
                      Monte-Carlo simulations of such laser injection experiments
                      was developed using the Allpix$^2$ framework. These
                      simulations were then validated by a comparison with the
                      experimental data, obtained with the Laserbox. It was shown
                      that the simulation is capable of accurately reproducing
                      signal shapes, induced in silicon sensors in these
                      experimental conditions.The Laserbox was also used to study
                      the DESY digital silicon photomultiplier (dSiPM) prototype,
                      a novel monolithic pixelated photo-detector with CMOS SPADs
                      as sensitive cells. A characterization campaign centering on
                      timing features of the device was conducted. The time
                      resolution of the dSiPM was found to be 53$\pm4$ ps under
                      optimal conditions. Meanwhile, the localized charge
                      deposition with the laser allows one to resolve
                      micrometer-scale features of the tested device, which
                      revealed in-pixel variations of the dSiPM characteristics
                      linked to the pixel cell layout. The second part of the
                      thesis covers the CMS Upgrade, discussing two particular
                      aspects of production and testing of PS modules for the CMS
                      Phase-2 Outer Tracker. First, the development of mechanical
                      construction procedures for the modules and establishment of
                      the robot-assisted assembly pipeline are discussed. These
                      procedures achieve a micrometer-level precision during the
                      assembly, which is crucial for the functioning of the novel
                      $p_t$-discrimination feature of these modules. Second, a
                      qualification campaign for the modules at the DESY II test
                      beam facility is reported, with a focus on detection and
                      $p_t$-discrimination efficiency. It was shown that the
                      module is able to select tracks with a specified $p_t$ at an
                      efficiency of 98$\pm$0.2\%, whereas outside the selection
                      region this efficiency drops to below 1\%. This campaign
                      proves the production readiness of the module design from
                      the particle detection functionality point of view.},
      cin          = {CMS},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611)},
      pid          = {G:(DE-HGF)POF4-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      doi          = {10.3204/PUBDB-2025-05410},
      url          = {https://bib-pubdb1.desy.de/record/642214},
}