Experimental Study of the X-Ray Radiation Source at Approximately Constant Radiation Temperature

(整期优先)网络出版时间:2013-11-21
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AnX-rayradiationsourcewithapproximatelyconstantradiationtemperatureisrealizedbyirradiatinggoldenhohlraumwithashapedlaserpulse.Asimpletheoreticalmodelbasedonpowerbalanceisusedtodesigntheshapeofthedrivelaserpulse.ExperimentsarecarriedoutontheShenguangIIIprototypelaserfacility,andtheexperimentalresultsarepresentedforradiationsourceswiththeflat-toplastingabout2.5nsattwodiferentpeaktemperaturesofabout150eVand170eV,respectively,includingthetimehistoriesofthetemperatures,theshapesofthedrivelaserpulsesandthetimeintegratedradiationspectra.Thevalidityofthemodelandpossibleimprovementsarediscussed.