摘要
TheserviceprovidedbytheGC(GammaCameras)intheNuclearMedicinedepartmentsfailsbecauseoftheirbreakdown,generallyduetotheassociatedelectronicsandnottothephysicaldetectioncomponents.Forthisreason,itwasdecidedtodevelopanelectronicsystemthatallowstherecoveryandoptimizationofdisusedGC,startingwiththedesignofthepreamplifierforaPMT(photomultipliertube).Thecircuitwasdesignedandsimulatedandthelistofcomponentsnecessaryfortheconstructionofthepreamplifierwasgenerated,aswellastheprintedcircuitboardwasdesignedforitsassembly.Bysimulatingthepreamplifierthisworkedinlinearmode.Thisdeterminesthattheamplitudeoftheoutputsignalisproportionaltotheamountofchargedeliveredbythedetector.ThiscardallowsanautomaticadjustmentofthesignalsofthePMTasdothemodernGC.
出版日期
2018年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)