TemperaturedependenceofYAlO3(Ce)scintillation responseto a-rayexcitation

Y.Toriyabe; E.Yoshida; J.Kasagi

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TemperaturedependenceofYAlO3(Ce)scintillation responseto a-rayexcitation

机译：YAlO3（Ce）闪烁对a射线激发的温度依赖性

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摘要

The temperaturedependenceoflightyieldanddecayconstantsofacerium-dopedyttriumaluminumperovskiteYAP(Ce)scintillatorexcitedby a-rayirradiationisstudiedbetween290and460K.Thescintillationisfoundtobecomposedofthreedecaycomponentswithdifferenttemperaturedependencies.Afastscintillationcomponentwithadecaytimeof 6 nsisalmostindependentoftemperature;thedecaytimeofthemaincomponentdecreasesfrom32to26nswithincreaseintemperature from290to400Kbutincreasesabove400K,andaslowcomponentwithadecaytimelarger than240nsbecomesclearlyvisibleattemperaturesbelow360K.Thetotallightyieldincreasesslightly asthetemperatureincreasesupto330Kanddecreasesabove330K.Theseresultsareessentiallyinterpretedusingatwo-shallow-trapmodelproposedbyWojtowiczetal.,butanadditionalmechanismwouldberequiredathighertemperatures

机译：a射线辐照激发的光产量和衰变常数的温度依赖性在290和460K之间进行了研究。Afastscintillationcomponentwithadecaytimeof 6 nsisal几乎与温度无关;thedecaytimeofthemaincomponent减少从32到26ns，温度从290K到400K增加，但增加到400K以上，并且慢成分与衰减时间大于240ns在温度低于360K时变得清晰可见，随着温度的升高，总光产量略有增加，上升到330K，并减少到330K以上.这些结果基本上是解释edusingatwo-shallow-trapmodelproposedbybyWojtowiczetal.，butanadditional mechanismwouldberequiredathighertemperatures.，butanadditional mechanismwouldberequiredathighertemperature

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《Nuclear Instruments and Methods in Physics Research, Section A. Accelerators, Spectrometers, Detectors and Associated Equipment》 |2009年第1期|69-75|共7页
作者
Y.Toriyabe; E.Yoshida; J.Kasagi;
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作者单位

LaboratoryofNuclearScience,TohokuUniversity,1-2-1,Mikamine,Sendai982-0826,Japan;

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正文语种英语
中图分类原子核物理学、高能物理学;
关键词
YAP(Ce)scintillator; Temperaturedependence; Light yield; Decay constant;

机译：YAP（Ce）闪烁体;温度依赖性;光产量;衰减常数;

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TemperaturedependenceofYAlO3(Ce)scintillation responseto a-rayexcitation

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