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Pulse pile-up identification and reconstruction for liquid scintillator based neutron detectors

Luo, X. L.; Modamio, V.; Nyberg, J.; Valiente-Dobon, J. J.; Nishada, Q.; de Angelis, G.; Agramunt, J.; Egea, F. J.; Erduran, M. N.; Erturk, S.; de France, G.; Gadea, A.; Gonzalez, V.; Goasduff, A.; Huyuk, T.; Jaworski, G.; Moszynski, M.; Di Nitto, A.; Palacz, M.; Soederstroem, P. -A.; Soederstroem, P. -A.


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    <creator>
      <creatorName>Luo, X. L.</creatorName>
      <givenName>X. L.</givenName>
      <familyName>Luo</familyName>
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    <creator>
      <creatorName>Modamio, V.</creatorName>
      <givenName>V.</givenName>
      <familyName>Modamio</familyName>
      <affiliation>Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy</affiliation>
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    <creator>
      <creatorName>Nyberg, J.</creatorName>
      <givenName>J.</givenName>
      <familyName>Nyberg</familyName>
      <affiliation>Uppsala Univ, Dept Phys &amp; Astron, SE-75120 Uppsala, Sweden</affiliation>
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    <creator>
      <creatorName>Valiente-Dobon, J. J.</creatorName>
      <givenName>J. J.</givenName>
      <familyName>Valiente-Dobon</familyName>
      <affiliation>Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy</affiliation>
    </creator>
    <creator>
      <creatorName>Nishada, Q.</creatorName>
      <givenName>Q.</givenName>
      <familyName>Nishada</familyName>
      <affiliation>Uppsala Univ, Dept Phys &amp; Astron, SE-75120 Uppsala, Sweden</affiliation>
    </creator>
    <creator>
      <creatorName>de Angelis, G.</creatorName>
      <givenName>G.</givenName>
      <familyName>de Angelis</familyName>
      <affiliation>Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy</affiliation>
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    <creator>
      <creatorName>Agramunt, J.</creatorName>
      <givenName>J.</givenName>
      <familyName>Agramunt</familyName>
      <affiliation>Univ Valencia, CSIC, IFIC, Valencia, Spain</affiliation>
    </creator>
    <creator>
      <creatorName>Egea, F. J.</creatorName>
      <givenName>F. J.</givenName>
      <familyName>Egea</familyName>
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    <creator>
      <creatorName>Erduran, M. N.</creatorName>
      <givenName>M. N.</givenName>
      <familyName>Erduran</familyName>
      <affiliation>Istanbul Sabahattin Zaim Univ, Fac Engn &amp; Nat Sci, Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Erturk, S.</creatorName>
      <givenName>S.</givenName>
      <familyName>Erturk</familyName>
      <affiliation>Omer Halisdemir Univ, Nigde, Turkey</affiliation>
    </creator>
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      <creatorName>de France, G.</creatorName>
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      <familyName>de France</familyName>
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      <creatorName>Gadea, A.</creatorName>
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      <familyName>Gadea</familyName>
      <affiliation>Univ Valencia, CSIC, IFIC, Valencia, Spain</affiliation>
    </creator>
    <creator>
      <creatorName>Gonzalez, V.</creatorName>
      <givenName>V.</givenName>
      <familyName>Gonzalez</familyName>
      <affiliation>Univ Valencia, Dept Elect Engn, E-46071 Valencia, Spain</affiliation>
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      <creatorName>Goasduff, A.</creatorName>
      <givenName>A.</givenName>
      <familyName>Goasduff</familyName>
      <affiliation>Univ Padua, Dipartimento Fis &amp; Astron, Padua, Italy</affiliation>
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    <creator>
      <creatorName>Huyuk, T.</creatorName>
      <givenName>T.</givenName>
      <familyName>Huyuk</familyName>
      <affiliation>Univ Valencia, CSIC, IFIC, Valencia, Spain</affiliation>
    </creator>
    <creator>
      <creatorName>Jaworski, G.</creatorName>
      <givenName>G.</givenName>
      <familyName>Jaworski</familyName>
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      <creatorName>Moszynski, M.</creatorName>
      <givenName>M.</givenName>
      <familyName>Moszynski</familyName>
    </creator>
    <creator>
      <creatorName>Di Nitto, A.</creatorName>
      <givenName>A.</givenName>
      <familyName>Di Nitto</familyName>
      <affiliation>Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Palacz, M.</creatorName>
      <givenName>M.</givenName>
      <familyName>Palacz</familyName>
      <affiliation>Univ Warsaw, Heavy Ion Lab, Ul Pasteura 5A, PL-02093 Warsaw, Poland</affiliation>
    </creator>
    <creator>
      <creatorName>Soederstroem, P. -A.</creatorName>
      <givenName>P. -A.</givenName>
      <familyName>Soederstroem</familyName>
    </creator>
    <creator>
      <creatorName>Soederstroem, P. -A.</creatorName>
      <givenName>P. -A.</givenName>
      <familyName>Soederstroem</familyName>
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  </creators>
  <titles>
    <title>Pulse Pile-Up Identification And Reconstruction For Liquid Scintillator Based Neutron Detectors</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2018</publicationYear>
  <dates>
    <date dateType="Issued">2018-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/35781</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.nima.2018.03.078</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">The issue of pulse pile-up is frequently encountered in nuclear experiments involving high counting rates, which will distort the pulse shapes and the energy spectra. A digital method of off-line processing of pile-up pulses is presented. The pile-up pulses were firstly identified by detecting the downward-going zero-crossings in the first-order derivative of the original signal, and then the constituent pulses were reconstructed based on comparing the pile-up pulse with four models that are generated by combining pairs of neutron and.. standard pulses together with a controllable time interval. The accuracy of this method in resolving the pile-up events was investigated as a function of the time interval between two pulses constituting a pile-up event. The obtained results show that the method is capable of disentangling two pulses with a time interval among them down to 20 ns, as well as classifying them as neutrons or gamma rays. Furthermore, the error of reconstructing pile-up pulses could be kept below 6% when successive peaks were separated by more than 50 ns. By applying the method in a high counting rate of pile-up events measurement of the NEutron Detector Array (NEDA), it was empirically found that this method can reconstruct the pile-up pulses and perform neutron-gamma discrimination quite accurately. It can also significantly correct the distorted pulse height spectrum due to pile-up events.</description>
  </descriptions>
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