CSR外靶径迹探测器的前端电子学升级许佳鹏1,2，王长鑫1，颜俊伟1，蒋洪灿1，孙志朋1，孔洁1,2，千奕1,2*，苏弘1,2(1.中国科学院近代物理研究所兰州730000；2.中国科学院大学核科学与技术学院北京石景山区100049)【摘要】多丝漂移室(MWDC)用于兰州重离子加速器−冷却存储环上外靶实验终端的径迹测量，其前端电子学中放大芯片采用SFE16芯片，目前前端电子学单板通道数较少，且慢控配置模块老旧，无法兼容新设备，配置效率较低。该文对前端板(FEE)进行升级，单板实现32通道；并设计一种基于现场可编程门阵列(FPGA)的配置板，通过上位机USB接口实现对多块SFE16芯片的快速高效配置。电子学测试实验结果表明，升级后的前端电子学在增加通道数的基础上保证了原有性能，并实现单次对248片SFE16芯片的配置，使用简单，配置效率高，实用性好。关键词现场可编程门阵列；上位机；多丝漂移室；SFE16；径迹测量中图分类号TL824文献标志码Adoi:10.12178/1001-0548.2022306UpgradeofFront-EndElectronicsforCSRExternalTargetTrackDetectorXUJiapeng1,2,WANGChangxin1,YANJunwei1,JIANGHongcan1,SUNZhipeng1,KONGJie1,2,QIANYi1,2*,andSUHong1,2(1.InstituteofModernPhysicsChineseAcademyofSciencesLanzhou730000;2.SchoolofNuclearScienceandTechnology,UniversityofChineseAcademyofSciencesShijingshanBeijing100049)AbstractThemultiwiredriftchamber(MWDC)isusedfortrackmeasurementoftheexternaltargetexperimentalterminalatheavyionresearchfacilityinLanzhou-Coolerstoragering.Theamplificationchipinthefront-endelectronics(FEE)adoptsSFE16chip.Atpresent,thenumberofsingleboardchannelsinthefront-endelectronicsisfew;Inaddition,theslowcontrolconfigurationmoduleisobsoleteandcannotbecompatiblewithnewdevices,resultinginlowconfigurationefficiency.Therefore,theFEEisupgradedinthispaper,andthesingleboardrealizes32channels;andaconfigurationboardbasedonfieldprogrammablegatearray(FPGA)isdesignedtorealizefastandefficientconfigurationofmultipleSFE16chipsthroughUSBinterfaceofhostcomputer.TheelectronicstestresultsshowthattheupgradedFEEguaranteestheoriginalperformanceonthebasisofincreasingthenumberofchannels,andrealizestheconfigurationof248SFE16chipsatatime.Itissimpletouse,efficienttoconfigure,andpractical...
