资源描述：
《(英)高能加速器中射频腔体的双极模式研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、DipoleModeStudyinRFCavitiesDipoleModeStudyinRFCavitiesforHighforHigh--EnergyAcceleratorsEnergyAcceleratorsNicoletaBaboi,StanfordLinearAcceleratorCenternicoleta.baboi@slac.stanford.eduTel:(650)9268602HFSSUsersWorkshop,LosAngeles,February20HFSSUsersWorksh
2、op,LosAngeles,February20--21,200321,2003StanfordLinearAcceleratorCenterStanfordLinearAcceleratorCenter--SLACSLACWhatwedo:Whatwedo:ØØhighhigh--energyphysicsenergyphysicsØØmaterialstudies,molecularbiologymaterialstudies,molecularbiologyetc.etc.Needhighene
3、rgyparticlesdeliveredNeedhighenergyparticlesdeliveredbylargeacceleratorsbylargeacceleratorsHwy2802milelinearacceleratorwww.slac.stanford.eduN.BaboiFebruary20-21,2003CourtesyStanfordLinearAcceleratorCenterAcceleratorsatSLACAcceleratorsatSLACAhighAhigh--e
4、nergyacceleratorisactuallyenergyacceleratorisactuallya(verypowerful)microscopea(verypowerful)microscopeElectronenergyinPEPII:2milelinearaccelerator2milelinearaccelerator9,000,000keV(forcomparison,TVtube:electronandpositronscollideabout20keV)CourtesyStan
5、fordLinearAcceleratorCenterN.BaboiFebruary20-21,2003http://www.slac.stanford.edu/accel/pepii/pep2aerial.gifNextLinearNextLinearColliderCollider(NLC)(NLC)•Plantobuildanevenbiggeraccelerator®NLCØAbout20mileslongØElectronenergy:250GeV(250,000,000keV)http:/
6、/www-project.slac.stanford.edu/nlc/home.htmlN.BaboiFebruary20-21,2003ContentsContents•AcceleratingstructuresØrfstructurestoaccelerateelectronsandotherparticlesØuniformandtaperedstructuresØdipolemodes:transversefieldsdeflectingparticles•Studydipolemodesi
7、ntaperedrfstructureswithHFSSØcalculateeigenfieldsanddrawdispersiondiagramsØstudymodesinteractingstrongestwiththebeamN.BaboiFebruary20-21,2003EffectofDipoleFieldsEffectofDipoleFields•1.5Nodipolefieldsbeamtrajectory1Østablebeam0.5002468101214-0.5-1Transve
8、rsebeamposition[mm]-1.5Accelerator[km]1.5•Withstrongdipolefields1Øbeammaybedeflected0.5transverselyorevenbelost0inthewallsofthevacuum-0.5chamberoftheaccelerator-1Transversebeamposition[mm]-1.502468101214Accelerator[km]N.BaboiFebr
