Ｎonlinear Control of Beam Halo—Chaos in Accelerator—Driven Clean Nuclear Power System-中国期刊网

摘要 Beamhalo-chaosinhigh-currentacceleratorshasbecomeakeyconcernedissuebecauseitcancauseexcessiveradioactivityfromtheacceleratorsthereforesignificantlylimitstheirapplicationsinindustry,medicine,andnationaldefense.Somegeneralengineeringmethodsforchaoscontrolhavebeendevelopedinrecentyears,buttheygenerallyareunsuccessfulforbeamhalo-chaossuppressionduetomanytechnicalconstraints.Beamhalo-chaosisessentiallyaspatiotemporalchaoticmotionwithinahighpowerprotonaccelerator.Inthispaper,someefficientnonlinearcontrolmethods,includingwaveletfunctionfeedbackcontrolasaspecialnonlinearcontrolmethod,areproposedforcontrollingbeamhalo-chaosunderfivekindsoftheinitialprotonbeamdistributions(i.e.,Kapchinsky-Vladimirsky,fullGauss,3-sigmaGauss,water-bag,andparaboladistributions)respectively.Particles-in-cellsimulationsshowthataftercontrolofbeamhalo-chaos,thebeamhalostrengthfactorisreducedtozero,andotherstatisticalphysicalquantitiesofbeamhalo-chaosaredoublyreduced.Themethodswedevelopedisveryeffectiveforsuppressionofprotonbeamhalo-chaosinaperiodicfocusingchannelofaccelerator.Somepotentialapplicationofthebeamhalo-chaoscontrolinexperimentsisfinallypointedout.

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Ｎonlinear Control of Beam Halo—Chaos in Accelerator—Driven Clean Nuclear Power System

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Ｎonlinear Control of Beam Halo—Chaos in Accelerator—Driven Clean Nuclear Power System

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