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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{
  "id": "1822", 
  "DOI": "10.14278/rodare.1822", 
  "abstract": "<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>", 
  "publisher": "Rodare", 
  "type": "dataset", 
  "language": "eng", 
  "author": [
    {
      "family": "Hensel, Thomas"
    }, 
    {
      "family": "Weinberger, David"
    }, 
    {
      "family": "Bemmerer, Daniel"
    }, 
    {
      "family": "Boretzky, Konstanze"
    }, 
    {
      "family": "Gasparic, Igor"
    }, 
    {
      "family": "Stach, Daniel"
    }, 
    {
      "family": "Wagner, Andreas"
    }, 
    {
      "family": "Zuber, Kai"
    }
  ], 
  "title": "Data: Study of a possible silicon photomultiplier based readout of the large plastic scintillator neutron detector NeuLAND", 
  "issued": {
    "date-parts": [
      [
        2022, 
        7, 
        29
      ]
    ]
  }
}