000868009 001__ 868009
000868009 005__ 20250129092510.0
000868009 037__ $$aFZJ-2019-06602
000868009 041__ $$aEnglish
000868009 1001_ $$0P:(DE-Juel1)169828$$aKumar, Shashank$$b0$$eCorresponding author$$ufzj
000868009 1112_ $$aInternational Workshop on Position Sensitive Neutron Detectors$$cJuelich$$d2018-05-15 - 2018-05-17$$gPSND$$wGermany
000868009 245__ $$aAssessment of performance of silicon photomultipliers in scintillator based neutron detectors
000868009 260__ $$c2018
000868009 3367_ $$033$$2EndNote$$aConference Paper
000868009 3367_ $$2BibTeX$$aINPROCEEDINGS
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000868009 520__ $$aScintillator based neutron detectors are a prominent alternative to 3He based gas detectors traditionally used for detecting cold and thermal neutrons. Over the last years, photomultiplier tubes (PMT) have been the predominantly used photodetector technology in position sensitive neutron detectors [1,2], built following the Anger camera [3] principle. However, the high voltage requirements (of some kV), gain fluctuations and sensitivity to magnetic field, have triggered the search for alternative photodetectors. One possible solution is using solid-state detectors capable of single-photon counting at even shorter response times, such as silicon photomultipliers (SiPM) or single photon avalanche photodiode (SPAD) arrays, additionally offering operability in presence of magnetic field, relative compactness, much lower biasing voltages (between 25V and 70V), as well as relatively lower production costs. SiPM technology has been largely ignored due to its vulnerability to radiation damage caused by exposure to neutrons, which may lead to the increase of dark current and the decrease in their photon detection efficiency (PDE). In order to assess the possibility of using SiPMs for this application, we irradiated one digital and two different analog SiPM arrays with cold neutrons of 5Å wavelength and a dose up to 6E12 n/cm2 at the KWS-1 instrument of the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching, Germany.  The purpose of the investigation [4, 5] was to analyse the effect of the radiation induced damage in the SiPMs. The figure of merit quantified for this work was dark signal and photon detection efficiency (PDE) of the SiPM arrays, before and after irradiation with cold neutrons. The results of the study concluded that this technology is sufficiently tolerant to radiation damage with an expected lifetime of 10 years and acceptable PDE performance, which provides a fruitful insight for their acceptability in this application.
000868009 536__ $$0G:(DE-HGF)POF3-632$$a632 - Detector technology and systems (POF3-632)$$cPOF3-632$$fPOF III$$x0
000868009 65027 $$0V:(DE-MLZ)SciArea-220$$2V:(DE-HGF)$$aInstrument and Method Development$$x0
000868009 65017 $$0V:(DE-MLZ)GC-1601-2016$$2V:(DE-HGF)$$aEngineering, Industrial Materials and Processing$$x0
000868009 693__ $$0EXP:(DE-MLZ)TREFF-20140101$$1EXP:(DE-MLZ)FRMII-20140101$$5EXP:(DE-MLZ)TREFF-20140101$$6EXP:(DE-MLZ)NL5S-20140101$$aForschungs-Neutronenquelle Heinz Maier-Leibnitz $$eTREFF: Neutronenreflektometer$$fNL5S$$x0
000868009 7001_ $$0P:(DE-Juel1)161528$$aDurini, Daniel$$b1$$ufzj
000868009 7001_ $$0P:(DE-Juel1)167475$$aDegenhardt, Carsten$$b2$$ufzj
000868009 7001_ $$0P:(DE-Juel1)142562$$avan Waasen, Stefan$$b3$$ufzj
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000868009 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)161528$$aForschungszentrum Jülich$$b1$$kFZJ
000868009 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)167475$$aForschungszentrum Jülich$$b2$$kFZJ
000868009 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)142562$$aForschungszentrum Jülich$$b3$$kFZJ
000868009 9131_ $$0G:(DE-HGF)POF3-632$$1G:(DE-HGF)POF3-630$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Technologie$$vDetector technology and systems$$x0
000868009 9141_ $$y2019
000868009 920__ $$lyes
000868009 9201_ $$0I:(DE-Juel1)ZEA-2-20090406$$kZEA-2$$lZentralinstitut für Elektronik$$x0
000868009 980__ $$aposter
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