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@INPROCEEDINGS{Fasselt:631467,
      author       = {Fasselt, Lucian and Tortajada, Ignacio Asensi and Behera,
                      Prafulla and Berlea, Dumitru Vlad and Bortoletto, Daniela
                      and Buttar, Craig and Dao, Valerio and Dash, Ganapati and de
                      Acedo, Leyre Flores Sanz and Gazi, Martin and Gonella, Laura
                      and Haberl, Sebastian and Inada, Tomohiro and Jana, Pranati
                      and Li, Long and Pernegger, Heinz and Riedler, Petra and
                      Snoeys, Walter and Sánchez, Carlos Solans and van Rijnbach,
                      Milou and Núñez, Marcos Vázquez and Vijay, Anusree and
                      Weick, Julian and Worm, Steven},
      title        = {{C}harge reconstruction from binary hit data on irradiated
                      {MALTA}2 {C}zochralski sensors},
      journal      = {Nuclear instruments $\&$ methods in physics research /
                      Section A},
      volume       = {1080},
      issn         = {0167-5087},
      address      = {[Amsterdam]},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2025-01979},
      pages        = {170747},
      year         = {2025},
      abstract     = {MALTA2 is a depleted monolithic active pixel sensor (DMAPS)
                      designed for tracking at high rates and is produced in the
                      modified Tower 180 nm CMOS imaging technology. The pixel
                      pitch is 36.4 µm and the sensing layer consists of either
                      high resistivity epitaxial or Czochralski silicon. The
                      implementation of a small collection electrode features a
                      small pixel capacitance and offers low noise. Typically a
                      detection threshold of around 200 e− is used. It is
                      calibrated making use of a dedicated charge injection
                      circuit on chip and an Fe-55 source. In this contribution,
                      MALTA2 sensors are characterised in terms of hit detection
                      efficiency inside the pixel at fine threshold steps. A
                      comparison is made for samples before and after irradiation
                      at different substrate voltages and with different doping
                      concentration of the internal n-layer. Data was taken at
                      CERN SPS test beam campaigns in 2023 and 2024, using the
                      MALTA beam telescope consisting of six MALTA tracking planes
                      with 4 µm spatial and 2 ns timing resolution. A
                      reconstruction of the most probable signal amplitude from
                      binary hit data is performed. A two-dimensional map of the
                      collected charge is obtained with sub-pixel resolution. The
                      presented method provides an in-beam alternative to grazing
                      angle studies or Edge-TCT for determining a charge
                      collection profile.},
      month         = {Feb},
      date          = {2025-02-17},
      organization  = {Vienna Conference on Instrumentation
                       2025, Vienna (Austria), 17 Feb 2025 -
                       21 Feb 2025},
      cin          = {$Z_DET$},
      ddc          = {530},
      cid          = {$I:(DE-H253)Z_DET-20201126$},
      pnm          = {622 - Detector Technologies and Systems (POF4-622) /
                      AIDAinnova - Advancement and Innovation for Detectors at
                      Accelerators (101004761) / STREAM - Smart Sensor
                      Technologies and Training for Radiation Enhanced
                      Applications andMeasurements (675587) / AIDA-2020 - Advanced
                      European Infrastructures for Detectors at Accelerators
                      (654168)},
      pid          = {G:(DE-HGF)POF4-622 / G:(EU-Grant)101004761 /
                      G:(EU-Grant)675587 / G:(EU-Grant)654168},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      doi          = {10.1016/j.nima.2025.170747},
      url          = {https://bib-pubdb1.desy.de/record/631467},
}