“核-光轉(zhuǎn)換”中子探測(cè)器的物理結(jié)構(gòu)設(shè)計(jì).pdf

1、獨(dú)創(chuàng)性聲明本人聲明所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。據(jù)我所知，除了文中特別加以標(biāo)注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得中國(guó)工程物理研究院或其他教育機(jī)構(gòu)的學(xué)位或證書使用過的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說明并表示謝意。學(xué)位論文作者簽名：窟派均簽字F：t期：)口f2年弘月多口同學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者完全了解并接受中國(guó)工

2、程物理研究院研究生部有關(guān)保存、使用學(xué)位論文的規(guī)定，允許論文被查閱、借閱和送交國(guó)家有關(guān)部門或機(jī)構(gòu)，同時(shí)授權(quán)中國(guó)工程物理研究院研究生部可以將學(xué)位論文全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索，可以影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。學(xué)位論文作者簽名：考液均簽字日期：矽／2年年月少同聊虢霞矗爭(zhēng)簽字日期：bf爭(zhēng)峰月M日AbstractThisthesisfocusesonthetechnicaldifficultiesatpresentin

3、measuringthetimespectrumandthetotalnumberofpulsedfissionneutronsinmixedradiationfieldInthisdissertation‘NuclearopticalConvertersdetector”isdevelopedandappliedinpulsedfissionneutronmeasurement，andsomemainirmovativeresearc

4、hachievementsareasfollows：(1)‘NuclearopticalConvertersdetector”forpulsedfissionneutronmeasurementisdevelopedsuccessfullyforthefirsttimeinourcountryThenoveldetectorhasfiatneutronenergy—response，largelinearrange，fastrespon

5、setime，highneutrort／gammaraymeasurementSNR，andsomeothergoodproperties(2)Thephysicaldesigntechniquesof‘NuclearopticalConvertersdetector”arecompletelyestablishedThedesignoptimizingtechniquesofthedetector’Sphysicalconfigura

6、tionsaremasteredUptopresent，“Nuclear—opticalConvertersdetector’using235UasdetectionmediumhastheflatneutronenergyresponseFrom己：o1MeVto14MeVthechangesofthedetector’SneutronsensitivitiesCanbecontrolledin100％(3)Themainphysic

7、alparametersof‘NuclearopticalConvertersdetector’arestudiedwiththeoreticalandexperimentalmethodsTheresearchresultsinclude：(a)Theneutronandgammaraysensitivitiesrelativelyandneutron／gammaraysensitivityratiosofthedetectorare

8、obtainedwithGeant4program(b)Theneutronandgamma—raysensitivitiesaremeasuredonDTneutronofDPFequipmentand60Cogamma—rayradiationsourcesrespectivelyThemeasurementresultshaveverifiedthereliabilityofthedetector’Sphysicaldesignt

9、echniques(c)ThetimeresponsecharacteristicsofthedetectorareevaluatedbymassandkineticenergyoffissionfragmentsTheresultsshowthedetector’StimeresponseisveryfastFromtheabove，‘NuclearopticalConvertersdetector’’isdevelopedsucce

10、ssfullyforthefirsttimeinOurcountryinthisdissertationThenoveldetectorwhichisforpulsedfissionneutronmeasurementhasflatneutronenergyresponse，largelinearrange，fastresponsetime，highneutron／gamma—raymeasurementSNRandsomeotherg

11、oodpropertiesThephysicaldesigntechniquesandexperimentalstudiesonthephysicalparametersofthedetectorarefounded‘NuclearopticalConvertersdetector’anditscorrespondingpulsedfissionneutronmeasurementtechniqueswhicharedevelopeds