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Sorting fission from parasitic coincidences of neutrons and gamma rays in plastic scintillators using particle times of flight

hal.structure.identifierCEA Cadarache
dc.contributor.authorBOTTAU, V.
hal.structure.identifierCEA Cadarache
dc.contributor.authorCARASCO, C.
hal.structure.identifierCEA Cadarache
dc.contributor.authorPEROT, B.
hal.structure.identifierCEA Cadarache
dc.contributor.authorELEON, C.
hal.structure.identifierCEA Cadarache
dc.contributor.authorDE STEFANO, R.
hal.structure.identifierCEA Cadarache
dc.contributor.authorISNEL, L.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorTSEKHANOVICH, I.
dc.date.accessioned2023-11-20T16:50:38Z
dc.date.available2023-11-20T16:50:38Z
dc.date.issued2021
dc.date.conference2021-06-21
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/185071
dc.description.abstractEn<jats:p>This work addresses the use of plastic scintillators as an alternative to <jats:sup>3</jats:sup>He detectors for radioactive waste drum characterization. The time response of scintillators is three orders of magnitude faster than that of gas proportional counters and they offer similar neutron detection efficiency at lower cost. However, they are sensitive to gamma rays and the commonly used Pulse Shape Discrimination technique is not possible with basic PVT scintillators. This paper reports on an innovative data processing technique allowing to extract spontaneous fission events from parasitic coincidences, such as those from the (α,n) reactions accompanied by correlated gamma rays or from pure gamma-ray sources emitting correlated radiations. The proposed approach makes advantage of differences in the pulse detection times recorded in measurements with the <jats:sup>252</jats:sup>Cf, AmBe and <jats:sup>60</jats:sup>Co sources. More precisely, a 2D histogram of time delays between the detected 2<jats:sup>nd</jats:sup> and 1<jats:sup>st</jats:sup> pulses, on the x-axis, and between the 3<jats:sup>rd</jats:sup> and 2<jats:sup>nd</jats:sup> pulses, on the y-axis, is found to allow for selection of a region of interest most relevant to spontaneous fission events.</jats:p>
dc.language.isoen
dc.source.titleEPJ Web Conf.
dc.title.enSorting fission from parasitic coincidences of neutrons and gamma rays in plastic scintillators using particle times of flight
dc.typeCommunication dans un congrès
dc.identifier.doi10.1051/epjconf/202125307014
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.page07014
bordeaux.volume253
bordeaux.hal.laboratoriesCentre d'Études Nucléaires de Bordeaux Gradignan (CENBG)*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.countryCZ
bordeaux.title.proceedingEPJ Web Conf.
bordeaux.conference.cityPrague
bordeaux.peerReviewednon
hal.identifierhal-03672619
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2021-06-25
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03672619v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.btitle=EPJ%20Web%20Conf.&amp;rft.date=2021&amp;rft.volume=253&amp;rft.spage=07014&amp;rft.epage=07014&amp;rft.au=BOTTAU,%20V.&amp;CARASCO,%20C.&amp;PEROT,%20B.&amp;ELEON,%20C.&amp;DE%20STEFANO,%20R.&amp;rft.genre=unknown


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