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@INPROCEEDINGS{Durini:811332,
      author       = {Durini, Daniel and Degenhardt, Carsten and Rongen, Heinz
                      and Feoktystov, Artem and Schlösser, Mario and Palomino
                      Razo, Alejandro and Frielinghaus, Henrich and van Waasen,
                      Stefan},
      title        = {{D}ark signal performance of different {S}i{PM}
                      technologies under irradiation with cold neutrons},
      reportid     = {FZJ-2016-03820},
      year         = {2016},
      abstract     = {The world-wide shortage of 3He gas has triggered research
                      on novel approaches for thermal and cold neutron detection
                      such as the development of scintillation based detectors to
                      be used in small angle neutron scattering (SANS)
                      experiments. In order to improve the neutron count rates by
                      simplifying the detector readout algorithms and
                      simultaneously increase the detectors space resolution, in
                      SANS instruments requiring detectors with active areas up to
                      1 m² pixelated scintillator detectors could be the new way
                      to proceed. Here, each detector “pixel” would have the
                      size directly matching the required space resolution. An
                      interesting candidate for the photodetector part in these
                      detectors could be an array of silicon photomultipliers
                      (SiPM), either analog or digital. It would yield the
                      possibility of single photon counting, low power
                      consumption, an acceptable space resolution, neutron
                      counting rates much higher than those achieved by current
                      3He based detectors, and the complete insensitivity to
                      magnetic fields up to several Tesla. The main risk defined
                      so far is the radiation hardness of SiPM arrays considering
                      thermal or cold neutron irradiation. We investigated the
                      dark signal and breakdown voltage performances of three SiPM
                      technologies, two analog ones and one based on digital
                      counting of avalanche events, both with and without a
                      scintillator material covering the following photodetector
                      arrays: SensL Series C 12x12 ArrayC-30035-144P, Hamamatsu 8
                      × 8 MPPC array S12642-0808PB-50, and Philips DPC3200-44-22
                      module. We irradiated the photodetector arrays under test
                      with cold neutrons $(lambda_n$ = 5 Å) at the KWS-1
                      instrument of the Heinz Maier Leibnitz Zentrum in Garching,
                      Germany, up to a dose of 6E12 n·cm-2. The SiPM detectors
                      were at all times fully operational, and the measurements
                      were performed in-situ. In this work we present the results
                      of the breakdown voltage, dark signal, and gain factor
                      characterization of those SiPM arrays before and after the
                      irradiation.},
      month         = {Jul},
      date          = {2016-07-04},
      organization  = {International Workshop on Radiation
                       Imaging Detectors, Barcelona (Spain), 4
                       Jul 2016 - 7 Jul 2016},
      subtyp        = {Other},
      cin          = {ZEA-2 / JCNS (München) ; Jülich Centre for Neutron
                      Science JCNS (München) ; JCNS-FRM-II / Neutronenstreuung ;
                      JCNS-1 / JCNS-2},
      cid          = {I:(DE-Juel1)ZEA-2-20090406 /
                      I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {632 - Detector technology and systems (POF3-632) / 6G4 -
                      Jülich Centre for Neutron Research (JCNS) (POF3-623) / 6G15
                      - FRM II / MLZ (POF3-6G15) / 6212 - Quantum Condensed
                      Matter: Magnetism, Superconductivity (POF3-621) / 524 -
                      Controlling Collective States (POF3-524)},
      pid          = {G:(DE-HGF)POF3-632 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6212 /
                      G:(DE-HGF)POF3-524},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/811332},
}