Implosion configurations for robust ignition using high- density carbon (diamond) ablator for indirect-drive ICF at the National Ignition Facility

摘要

Wepresentfiveignitionscalecapsuledesignsusinghigh-densitycarbonablatorswithfueladiabat(α)rangingfrom1.5to4.Allfivehave1Dyield1MJ.ThesensitivitiesofthesecapsulestosurfaceroughnessandP2radiationasymmetrieswerestudied.Themostrobustconfigurationwithrespecttosurfaceroughnessdependsontheamplitudeofthesurfacespectrum.ThemostrobustconfigurationwithrespecttoP2asymmetryistheα=1.5configurationwhichhasthehighest1Dmargin.Wefindthatα=2and2.5configurationshavethehighestoverallrobustness.Furtheranalysisisneededtostudytheeffectsofmorecomplicated3Dbehaviors...