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

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dc.authoridGadea, Andres/0000-0002-4233-1970
dc.authoridMoszynski, Marek/0000-0002-1267-2838
dc.authoridSanchis Peris, Enrique/0000-0002-9689-9131
dc.authoridAgramunt Ros, Jorge/0000-0002-0891-1007
dc.authoridErduran, Mustafa/0000-0003-0852-9753
dc.authoridHuyuk, Tayfun/0000-0003-0597-9767
dc.authoridJaworski, Grzegorz/0000-0003-2241-0329
dc.contributor.authorLuo, X. L.
dc.contributor.authorModamio, V.
dc.contributor.authorNyberg, J.
dc.contributor.authorValiente-Dobon, J. J.
dc.contributor.authorNishada, Q.
dc.contributor.authorde Angelis, G.
dc.contributor.authorAgramunt, J.
dc.date.accessioned2024-11-07T13:35:36Z
dc.date.available2024-11-07T13:35:36Z
dc.date.issued2018
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe 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.
dc.description.sponsorshipSwedish Research Council; UK STFC [ST/L005727/1]; Generalitat Valenciana, Spain [PROMETEO/2010/101]; MINECO, Spain [AIC-D-2011-0746, FPA2011-29854, FPA2012-33650]; TUBITAK, Turkey [114F473]; STFC [ST/L005727/1, ST/P003885/1, ST/J000124/1] Funding Source: UKRI
dc.description.sponsorshipThis work was partly funded by the Swedish Research Council, by the UK STFC, under grant ST/L005727/1, by the Generalitat Valenciana, Spain, under grant PROMETEO/2010/101, by MINECO, Spain, under grants AIC-D-2011-0746, FPA2011-29854 and FPA2012-33650, and by TUBITAK, Turkey, under grant 114F473.
dc.identifier.doi10.1016/j.nima.2018.03.078
dc.identifier.endpage65
dc.identifier.issn0168-9002
dc.identifier.issn1872-9576
dc.identifier.scopus2-s2.0-85046627341
dc.identifier.scopusqualityQ1
dc.identifier.startpage59
dc.identifier.urihttps://doi.org/10.1016/j.nima.2018.03.078
dc.identifier.urihttps://hdl.handle.net/11480/16564
dc.identifier.volume897
dc.identifier.wosWOS:000433206800010
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofNuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectPile-up
dc.subjectDigital
dc.subjectFirst-order derivative
dc.subjectNeutron-gamma discrimination
dc.subjectLiquid scintillator
dc.titlePulse pile-up identification and reconstruction for liquid scintillator based neutron detectors
dc.typeArticle

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