Mitigation of Laser Imprinting with Diamond Ablator for Direct-Drive Inertial Confinement Fusion Targets

摘要

Weproposeanovelschemetomitigatetheinitialperturbationimprintingduetoirradiationnon-uniformity.DiamondwaspotentialcandidatefortheablatormaterialforICFtargetsduetoitsstiffness.Thestiffnessisveryimportantparameterforimprintmitigationbecausethelaserimprintisprimaryasafunctionofpressureperturbationduetolaseirradiationnon-uniformity.Wemeasuredtheimprintamplitudeofdiamondfoilsandplastic(CH)foils.Theexperimentaldatasuggesttheinitialimprintingisdrasticallymitigatedforthediamondfoils...