July 29, 2022 Dataset Restricted Access

Hensel, Thomas; Weinberger, David; Bemmerer, Daniel; Boretzky, Konstanze; Gasparic, Igor; Stach, Daniel; Wagner, Andreas; Zuber, Kai

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    "doi": "10.14278/rodare.1822", 
    "pub_id": "34981", 
    "description": "<p>The NeuLAND (New Large-Area Neutron Detector) plastic scintillator based time of flight detector for 0.2-1.6 GeV<br>\nneutrons is currently under construction at the Facility for Antiproton and Ion Research (FAIR), Darmstadt, Germany.<br>\nIn its final configuration, NeuLAND will consist of 3,000 2.7 m long plastic scintillator bars that are read out on each<br>\nend by fast timing photomultipliers.<br>\nHere, data from a comprehensive study of an alternative light readout scheme using silicon photomultipliers (SiPM)<br>\nare reported.&nbsp; For this purpose, a typical NeuLAND bar was instrumented on each end with a prototype of the same<br>\ngeometry as a 1&rdquo; photomultiplier tube, including four 6&times;6 mm2 SiPMs, amplifiers, high voltage supply, and micro-<br>\ncontroller.<br>\nTests were carried out using the 35 MeV electron beam from the ELBE superconducting linac with its ps-level time jitter in two different modes of operation, namely parasitic mode with one electron per bunch and single-usermode with 1-60 electrons per bunch, using Acqiris fast digitizers. In addition, offline tests using cosmic rays and the NeuLAND data acquisition scheme were carried out.<br>\nTypical time resolutions of &sigma;&le;120 ps were found for &ge; 95% efficiency, improving on previous work at ELBE and exceeding the NeuLAND timing goal of &sigma; &lt;150 ps. Over a range of 10-300 MeV deposited energy in the NeuLAND bar,&nbsp; the&nbsp; gain&nbsp; was&nbsp; found&nbsp; to&nbsp; deviate&nbsp; by &le; 10%&nbsp; (&le;20%)&nbsp; from&nbsp; linearity&nbsp; for&nbsp; 35&mu;m&nbsp; (75&mu;m)&nbsp; SiPM&nbsp; pitch,&nbsp; respectively, satisfactory for calorimetric use of the full NeuLAND detector.&nbsp; The dark rate of the prototype studied was found to<br>\nbe 70-200 s-1, comparable with the unavoidable cosmic-ray induced background.</p>\n\n<p>The dataset contains the with the Acqiris Digitzier recorded waveforms and analysis scripts for interpretation of the data. Also GEANT4 simulations of the light propagation in a NeuLAND bar and the electron beam propagation are included.</p>", 
    "keywords": [
      "SiPM", 
      "saturation", 
      "NeuLAND", 
      "dark rate", 
      "electron beam", 
      "timeresolution"
    ], 
    "language": "eng", 
    "access_right": "restricted", 
    "title": "Data: Study of a possible silicon photomultiplier based readout of the large plastic scintillator neutron detector NeuLAND", 
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    "creators": [
      {
        "name": "Hensel, Thomas", 
        "affiliation": "HZDR / TU Dresden", 
        "orcid": "0000-0002-8534-3445"
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        "name": "Weinberger, David", 
        "affiliation": "HZDR"
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      {
        "name": "Bemmerer, Daniel", 
        "affiliation": "HZDR"
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      {
        "name": "Boretzky, Konstanze", 
        "affiliation": "GSI"
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      {
        "name": "Gasparic, Igor", 
        "affiliation": "RBI Zagreb & TU Darmstadt & GSI"
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      {
        "name": "Stach, Daniel", 
        "affiliation": "HZDR"
      }, 
      {
        "name": "Wagner, Andreas", 
        "affiliation": "HZDR"
      }, 
      {
        "name": "Zuber, Kai", 
        "affiliation": "TU Dresden"
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