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AZHOLENTS,PQE,JANUARY,2006XRAYFREEELECTRONLASERSALEXANDERZHOLENTSLBNLANINTRODUCTIONTOTHEAFTERNOONSESSIONJOHNARTHUR,SLACAPPLICATIONSOFTHEINTENSECOHERENTXRAYPULSESFROMLCLSJOHNCORLETT,LBNLPROPOSALSANDCONCEPTSFORFUTUREFELSANDREWSESSLER,LBNLTRANSVERSELONGITUDINALCORRELATIONSFELPERFORMANCEANDEMITTANCEEXCHANGEAZHOLENTS,PQE,JANUARY,2006XRAYFELESSENTIALSLAYOUTOFXFELATDESYGERMANYELECTRONBEAMPRODUCTIONSYSTEMQ1NC,EN1MMMRADELECTRONBEAMDELIVERYSYSTEME20GEV,IPEAK5KAELECTRONBEAMUTILIZATIONFOREMISSIONOFXRAYSL1,T100FS,DE1MJMOREINFOABOUTFUTUREXRAYFELFACILITIESINTHETALKOFJOHNCORLETTANDUSEOFTHESEFACILITIESINTHETALKOFJOHNARTHURINTHEFOLLOWINGSESSIONMCOURTESYTLIMBERGAZHOLENTS,PQE,JANUARY,2006LUSNSNSNSNSNSNSNSNNSNSNSNSNSNSNSNS1UNDULATORBYPEAKMAGNETICFIELDEMISSIONOFXRAYS2ELECTRONBEAM3LASERNOTALWAYSNEEDEDUNDULATORPARAMETERVZAZHOLENTS,PQE,JANUARY,2006NSNSNSNSNSNSNSNSSNSNSNSNSNSNSNSNFELS“POWER”ISINBUNCHINGRADIATIONPOWERELECTRONSSHOULDSTAYBUNCHEDWITHINMOTZ1953PHILLIPS1960,MADEY1971AZHOLENTS,PQE,JANUARY,2006DE/EZVV0SINWTRFACCELERATINGVOLTAGEDZR56DE/EPATHLENGTHENERGYDEPENDENTBEAMLINEDE/EZDE/EZCHIRPRF“BUNCHER”COURTESYPEMMAAZHOLENTS,PQE,JANUARY,2006ENERGYMODULATIONOFELECTRONSINTHEUNDULATORBYTHELASERLIGHTELECTRONTRAJECTORYTHROUGHUNDULATORUNDULATORPERIODNSSNSSNNELULIGHTMAGNETICFIELDINTHEUNDULATORBB0SINKUZEKBEKBVVLASERWAVELENGTHLASER“BUNCHER”FELRESONANCECONDITIONWHILEPROPAGATINGONEUNDULATORPERIOD,THEELECTRONISDELAYEDWITHRESPECTTOTHELIGHTONONEOPTICALWAVELENGTHAZHOLENTS,PQE,JANUARY,2006LASERPULSEENERGYSPONTANEOUSEMISSIONENERGYFIELDENERGYINTHEFARFIELDREGIONOFUNDULATORRADIATIONINTHEPRESENCEOFTHELASERFIELDLASERFIELDELECTRONSPONTANEOUSEMISSIONENERGYMODULATIONDEDEFNUMBEROFUNDULATORPERIODSNUMBEROFOPTICALCYCLESFISTHEELECTRONPHASERELATIVETOTHELASERWAVEATTHEUNDULATORENTRANCELASER“BUNCHER”2LASERPULSEWIDTHOZAZHOLENTS,PQE,JANUARY,2006LASER“BUNCHER”3DE2A1/137PHOTONENERGYIN50FSFWHMPULSEWNUMERICALEXAMPLEHLDWLDWRAL5NJDE150KEVTOBECOMPAREDWITHUNCORRELATEDELECTRONBEAMENERGYSPREADOF100KEVK3FORK1SPONTANEOUSEMISSIONENERGY30THHARMONICOFTISAPPHIRELASERPRODUCEDUSINGHIGHORDERHARMONICGENERATION45EVLASERPULSEENERGYAZHOLENTS,PQE,JANUARY,2006MODULATORBUNCHINGCHICANEXUVLIGHTNU100RADIATORNU10030NM,5NJ,50FS100KW30NM,30MWLASER“BUNCHER”4OPTICALKLYSTRONSKRINSKY,VINOKUROV,1977EEXUVLIGHTFRAGMENTOFEBEAMMODULATIONFRAGMENTOFEBEAMBUNCHINGAZHOLENTS,PQE,JANUARY,2006AZHOLENTS,SANDIEGO,APRIL,2004BUNCHINGCHICANELASERLIGHTTIMEDELAYCHICANE240NM48NMEMODULATORRADIATORELIGHTMODULATORRADIATOR48NMELIGHT12NMHARMONICCASCADEFELPOSITIONOFFELPULSEINFULLELECTRONBEAMPULSEUNPERTURBEDELECTRONS100FSSEEDLASERPULSETAILHEADRADIATORRADIATORMODULATORFRESHBUNCHTECHNIQUEPPPHASEENERGYPPEVOLUTIONOFEBEAMPHASESPACENEWUNDULATORRESONANTATLL/N,ANDBUNCHEDBEAMRADIATESATNTHHARMONICBUNCHINGCHICANECSONKA1980KINCAID1980BONIFACIO1990LHYU1990RZAZHOLENTS,PQE,JANUARY,2006POWERVSZANDGQSCATTERPLOTSATEACHMODULATOR,RADIATIONINTERACTSWITH“FRESH”EATEACHHARMONICUPSHIFTMODULATORTORADIATOR,MACROPARTICLEPHASEMULTIPLIEDBYNBUNCHINGEFFECTSOFDISPERSIVESECTIONVISIBLEINCHANGEFROMZ6MIN48NMMODULATORTOZ04MSCATTERPLOTIN12NMRADIATORZ0MZ18MZ36MZ0MZ0MZ04MZ3MZ6M240NMMODULATOR10GW40GW48NMRADIATOR48NMMODULATOR250412GW12NMRADIATOR250440GW48NMMODULATOR25102508ENERGYMEVRADIANSRADIANSPP5P5PPPRADIANS4P4PRADIANS2496249624902492Z54MZ34MZ44MZ24MGINGERSIMULATIONSWFAWLEY,LBNLAZHOLENTS,PQE,JANUARY,2006GINGERSIMULATIONOF4STAGECASCADECONFIGURATION240NM1NMWFAWLEYINPUTLASERSEEDINITIALIZEDWITHBROADBANDAPHASENOISEBAMPLITUDENOISEFIELDSRESOLVEDINSIMULATIONON240NM/CTEMPORALRESOLUTIONORBETTERRESULTSNOISEREACHESMINIMUMAT48NMSTAGESLIPPAGEAVEGINLATERSTAGESNOISEINCREASESDUETOHARMONICMULTIPLICATIONOFLOWFREQUENCYCOMPONENTSRMSPHASENOISEDFT/DTAFTERREMOVALOFAVERAGECOMPONENTDFT/DTAUAB12NM4NM1NM48NM240NMEXITNOISEEVOLUTIONFROMIMPERFECTSEEDSALDINETAL,2002NOISECANBEAPROBLEMAT1AZHOLENTS,PQE,JANUARY,2006SELFAMPLIFIEDSPONTANEOUSEMISSIONFELKONDRATENKO,SALDIN1980BONIFACIO,PELLEGRINI,NARDUCCI1984SIMILARTOOPTICALLASERS,SASEXRAYFELSTARTSFROMSPONTANEOUSEMISSIONBUTAVOIDSUSEOFMIRRORSCOURTESYSREICHECOURTESYZHUANGDENSITYMODULATIONSHOTNOISEATSTARTORMICROBUNCHINGLATTERDRIVESENERGYMODULATIONANDVICEVERSAINSTABILITYREACHESSATURATIONAFTERALLELECTRONSAREMICROBUNCHEDORRATEOFDEBUNCHINGEQUALSRATEOFBUNCHINGGAINLENGTHPRADRPBEAMAZHOLENTS,PQE,JANUARY,2006THEFELPARAMETERRSMALLDIFFRACTION,RADIATIONFIELDINTERACTSLOCALLYWITHTHEELECTRONBEAM,IEOPTICALGUIDINGSOMESIMILARITYWITHFIBEROPTICSNOGUIDING,STRONGDIFFRACTIONIA17KAEBEAMEMITTANCEBETAFUNCTIONFORK1PEAKCURRENTLIGHTEMITTANCELXXRAYWAVELENGTHKEYPARAMETERSBEAMENERGYSPREADCAUSESDEBUNCHINGMOORE1984SCHARLEMANN,SESSLER,WURTELE1985AZHOLENTS,PQE,JANUARY,2006TRANSVERSECOHERENCEWHENSPONTANEOUSUNDULATORRADIATIONCONSISTSOFMANYSPATIALMODES,IEINCOHERENTSUMOFINDIVIDUALELECTRONEMISSIONSBUTFELGAINISLOCALIZEDWITHINTHEELECTRONSANDHIGHERORDERMODESHAVESTRONGERDIFFRACTIONGAINGUIDEDSELECTIONOFFUNDAMENTALMODERESULTSINFULLYTRANSVERSECOHERENCEEVENATXXEBEAMLIGHTBEAMDIFFRACTIONLIMITEDCOURTESYSREICHERADIATIONFIELDATDIFFERENTLOCATIONSALONGTHEUNDULATORAZHOLENTS,PQE,JANUARY,2006TEMPORALCOHERENCEBUNCHLENGTHCOOPERATIONLENGTHSLICESASEOUTPUTEXHIBITS“CHAOTICLIGHT”PROPERTIESNUMBEROFLONGITUDINALMODESMBUNCHLENGTH/SLICEFLUCTUATIONINTHEXRAYPULSEENERGY1/MSLICEPROPERTIES,IESLICEPEAKCURRENT,EMITTANCEANDENERGYSPREADDEFINEPERFORMANCEAZHOLENTS,PQE,JANUARY,2006TEMPORALCOHERENCE2MDECREASESASCOHERENCEBUILDSUPDURINGTHEEXPONENTIALGAINREACHINGMINIMUMATSATURATION200ATLCLSCOURTESYWFAWLEYAZHOLENTS,PQE,JANUARY,2006PRODUCTIONOFBRIGHTELECTRONBEAMSGENERATIONEBEAMPEAKBRIGHTNESSUNITESINASINGLEEXPRESSIONKEYPARAMETERSFORXRAYFELSPEAKBRIGHTNESSOFDIFFERENTPHOTOCATHODEEGUNS2002COURTESYPPIOT100A,EN1MMMRADRAPIDACCELERATIONNEARTOTHECATHODETOAVOIDSPACECHARGEDILUTIONDESYZEUTHENNEWGENERATIONOFEGUNSAZHOLENTS,PQE,JANUARY,2006PRODUCTIONOFBRIGHTELECTRONBEAMSPRESERVATIONQNONLINEAREFFECTSINBUNCHCOMPRESSIONRFWAVEFORM,T566QLONGITUDINALANDTRANSVERSEWAKEFIELDSINACCELERATORQSPACECHARGEEFFECTSMAINLYLONGITUDINALQCOHERENTSYNCHROTRONRADIATIONCSRANDEMITTANCEEXCITATIONQRESISTIVEWALLWAKEFIELDSINUNDULATORSPHYSICSPHENOMENAAFFECTINGTHEEBEAMWHILEACCELERATIONANDCOMPRESSIONQJITTERINTHERFPHASEANDAMPLITUDEINACCELERATINGSTRUCTURESQINTENSITYANDTIMINGJITTERSINPHOTOCATHODEGUNLASERQMISALIGNMENTOFRFSTRUCTURESANDMAGNETICELEMENTSQPOWERSUPPLYRIPPLESTECHNICALISSUESAZHOLENTS,PQE,JANUARY,2006DE/E0DXR16SDE/EBENDPLANEEMITTANCEGROWTHERSZCOHERENTRADIATIONFORLSZOVERTAKINGLENGTHL024SZR21/3DE/E0SDXPOWERFULRADIATIONGENERATESENERGYSPREADINBENDSCAUSESBENDPLANEEMITTANCEGROWTHSHORTBUNCHWORSEENERGYSPREADBREAKSACHROMATICSYSTEML0LCSRWAKEISSTRONGATVERYSMALLSCALES1MMCOHERENTSYNCHROTRONRADIATIONCSRCOURTESYPEMMAAZHOLENTS,PQE,JANUARY,2006INITIALDENSITYMODULATIONINDUCESENERGYMODULATIONTHROUGHLONGITUDINALSPACECHARGEFORCES,CONVERTEDTOMOREDENSITYMODULATIONBYACOMPRESSORLTCURRENT110GROWTHOFSLICEENERGYSPREADANDEMITTANCELTENERGYSPACECHARGEGAIN10COMPRESSIONLONGITUDINALSPACECHARGE,CSRANDMICROBUNCHINGINSTABILITYCOURTESYZHUANGSATURATIONDUETOOVERMODULATIONSTOPSTHEGROWTHAZHOLENTS,PQE,JANUARY,2006SPECTRALDEPENDENCEOFTHEGAINOFTHEMICROBUNCHINGINSTABILITYMICROBUNCHINGINSTABILITY2ENTIREMACHINEWITHITSACCELERATINGSECTIONS,DRIFTSANDCHICANESACTSASANAMPLIFIERFORINITIALDENSITYPERTURBATIONANDCANBECHARACTERIZEDBYASPECTRALGAINFUNCTIONINANANALOGYTOTHEFELSZHUANGETAL,PHYSREVSTACCANDBEAMS,V5,07440120021400LMM50150200INSTABILITYINCREASESRMSENERGYSPREADBYAFACTOROF510FERMIFELPROJECTAZHOLENTS,PQE,JANUARY,2006LASERHEATERASANINSTRUMENTFORASUPPRESSIONOFMICROBUNCHINGINSTABILITY1,21ELSALDIN,EASCHNEIDMILLER,ANDMVYURKOV,DESYREPORTNOTESLAFEL200303,20032ZHUANG,ETAL,PHYSREVSTACCANDBEAMS,V7,074401,2004800LASERHEATER25KEVLASERHEATER5KEVLASERHEATER75KEVLASERHEATER10KEV1200150300LASER“HEATER”LASEREBEAMINTERACTIONINDUCEENERGYSPREADPROVIDES“LANDAUDAMPING”EFFECTTHROUGHCONTROLLEDINCREASEOFTHEENERGYSPREADATTHEBEGINNINGOFACCELERATIONAZHOLENTS,PQE,JANUARY,2006ALIGNMENTERRORSANDORBITDISTORTIONSARERESPONSIBLEFORTRANSVERSEWAKEFIELDSPRODUCEDBYEBEAM,ANDTRANSVERSEWAKEFIELDSTWISTEBEAMINTOABANANASHAPECOURTESYPEMMA1SZHEADTAILSLICEEMITTANCEISNOTAFFECTEDCENTROIDSHIFTANDBVARIATIONCANBEIMPORTANTWAKEFIELDSOTHERWAKEFIELDSLONGITUDINALWAKES,RESISTIVEWALLWAKES,SURFACEROUGHNESSWAKESALSODONOTAFFECTSLICESANDPRODUCESIMILARGLOBALVARIATIONSTHATNEVERTHELESSCANBEDANGEROUSFORFELPERFORMANCEAZHOLENTS,PQE,JANUARY,2006PUSHINGOVERTHELIMITSFURTHERIMPROVEMENTSCANBEOBTAINEDBYUSING1ELECTRONBEAMCONDITIONING2ENHANCEDSASETALKOFJWURTELE,WEDNESDAYEVENINGAZHOLENTS,PQE,JANUARY,2006SESSLER,WHITTUM,YUIN1992ALLOWSRELAXEDEMITTANCEREQUIREMENTINFELZYUNDULATORDE/EYWITHOUTCONDITIONINGZYWITHCONDITIONINGELECTRONBEAMCONDITIONINGPROVIDESCORRELATIONOFELECTRONTRANSVERSEAMPLITUDESWITHELECTRONENERGIESTOPREVENTDEBUNCHINGOFELECTRONSMOREINSESSLERSTALKINTHEFOLLOWINGSESSIONAZHOLENTS,PQE,JANUARY,2006EBEAMCAUTIONAPPROXIMATELYONEHALFOFELECTRONSHAVEWRONGSIGNOFCORRELATIONPROPOSEDSCHEMEGAINSFACTOROF105INEFFICIENCYBYUTILIZINGLASERANDWIGGLERFORELECTRONENERGYMODULATIONINSTEADOFRFCAVITIESLASERASSISTEDELECTRONBEAMCONDITIONINGZHOLENTS2005AZHOLENTS,PQE,JANUARY,2006EXAMPLELCLSLIKEFELWITH2TIMESOFLCLSEMITTANCE1NOCONDITIONING,2IDEALCONDITIONINGALLELECTRONS,3PROPOSEDCONDITIONERGENESISSIMULATIONSBEAMPARAMETERSENERGY14GEVPEAKCURRENT34KA,ENERGYSPREAD12MEV,EMITTANCE24MMMRAD,BETAFUNCTION20MLASERASSISTEDELECTRONBEAMCONDITIONING2AZHOLENTS,PQE,JANUARY,2006E45GEVLASERPEAKPOWER10GW“EASY”SHORTWIGGLER,10PERIODSBUNCHINGACCELERATIONMODULATION30100FSPULSELL08TO22MMELECTRONBEAMAFTERBUNCHINGPEAKCURRENT,I/I0Z/LL2025KAE14GEVONEOPTICALCYCLEESASEENHANCEDSELFAMPLIFIEDSPONTANEOUSEMISSIONZHOLENTS2004LASERPULSEWIDTHAZHOLENTS,PQE,JANUARY,2006“STARTTOEND”SIMULATIONS3MFODOLATTICEPERIODDRIFTSQUADSOCCUPY05MNOTCOMPATIBLEWITHCURRENTLCLSLATTICEDESIGNESASE2EXAMPLEFORLCLSWITHB12MESASECASESSATURATEBY50MWITH50100TIMESPOWERCONTRASTOVERUNMODULATEDPARTOFTHEELECTRONBUNCHTHEOPPORTUNITYFORANABSOLUTESYNCHRONIZATIONOFAPROBEXRAYPULSETOAPUMPLASERPULSECOURTESYWFAWLEY“STANDARD”LCLSESASEAZHOLENTS,PQE,JANUARY,2006COMBINEDFIELDOFTWOLASERSENERGYMODULATIONOFELECTRONSPRODUCEDININTERACTIONWITHTWOLASERSATTOSECONDXRAYSUSINGESASEZHOLENTS,PENN2005AZHOLENTS,PQE,JANUARY,2006PEAKCURRENTAFTERCHICANEONELASERTWOLASERSATTOSECONDXRAYSUSINGESASE2AZHOLENTS,PQE,JANUARY,2006BACKGROUNDFROM100FSEBUNCHSIDEPEAKSMAINPEAKATTOSECONDPULSEXRAYPULSEENERGYGROWTHOVERTHELENGTHOFTHEUNDULATOR35GWATTOSECONDXRAYSUSINGESASE3MAINPEAKSIDEPEAKSENTIREBUNCH350ASAZHOLENTS,PQE,JANUARY,2006SUMMARYVXRAYFELSAREASGOODASTHEELECTRONBEAMIS,IEPEAKCURRENTSLICEEMITTANCESLICEENERGYSPREADVPRODUCTIONOFAHIGHBRIGHTNESSELECTRONBEAMSANDPRESERVATIONOFTHEELECTRONBEAMQUALITYISAFFECTEDBYSPACECHARGECOHERENTSYNCHROTRONRADIATIONMICROBUNCHINGINSTABILITYVARIOUSWAKEFIELDSVLASERASSISTEDMANIPULATIONOFELECTRONSINTHEPHASESPACEIS
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