User’s Manual for elegant

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1、User’sManualforelegantProgramVersion25.1.0AdvancedPhotonSourceMichaelBorlandOctober4,2012Note:anothersourceofhelpforelegantistheon-lineforum.Usersareencouragedtojoinandparticipate.Atminimum,usersshouldsubscribetothe“Bugs”topic,sincethisiswherebugnotificationsareposted.Contrarytoprev

2、iouspractise,wewillnolongerannouncebugsviaemail.Abriefoverviewofelegantisalsoavailable,whichintroducesthecapabilitiesatahigh-level.1HighlightsofWhat’sNewinVersion25.1Hereisasummaryofwhat’schangedsincerelease25.0:1.1BugFixesforElements•TherewasabugintheECOLelementwhenthelengthwasnon

3、zeroandtheoffset(DXorDY)wasnonzero.Thiswasfixed.•Toavoidnumericalproblems,synchrotronradiationisnowdisabledautomaticallyforKSEXTelementsshorterthan1µmwhenperformingbeammomentscalculationswithradiation.•Insomecases,thematrixfortheMATRelementwouldnotgetloadedpriortotracking,resultingin

4、acrash.Thiswasfixed.•Abugwasfixedinpost-adjustmentofsynchrotronradiationlossesintheCSRCSBENDelement,whichmadeextremelysmallerrorsintheresultsThiswasreportedbyK.Amyx(Tech-X).1.2BugFixesforCommands•DeterminationofthematrixfortheMAPSOLENOIDandTWMTAelementswasbrokeninversion22.Thiswasfixe

5、d.1.3NewandModifiedElements•AddedtheCORGPIPEelement,whichimplementsabeamdechirperusingacorrugatedpipewakefield,basedonthetheoreticaltreatmentofK.Bane[38].ThiswassuggestedbyP.Emma(LBNL).•Ifnotsetbytheusers,theN_KICKSparameterofRFCAandRFCWwillnowbeautomaticallysetinordertoensureasufficie

6、ntnumberofkicks,definedas100kicksperwavelength.Thismaybeexcessiveforhigh-energybeams.1•AutomaticselectionofthenumberofbinsandbinsizefortheWAKEelementwasmodifiedtoavoidwarningmessages.•TheEDRIFTelementcannowbesubdividedusingtheusualelementdivisioncommands.•TheCSRCSBENDelementwasimprov

7、edtosupporttheintegratedGreen’sfunctionmethodforsteady-statewakes.ThiswasdonewiththeassistanceofR.Ryne(LBNL).•TheNIBENDelementnowallowspositioningofthefringeregionrelativetothereferenceplane.Thefringeregionmaybeinside,outside,orcenteredonthereferenceplane.Thiswasaddedafterdiscussio

8、nswithN.Nakamura(KEK).1.4N