简介：AdeuteriumclusterjetproducedinthesupersonicexpansionintovacuumofdeuteriumgasatliquidnitrogentemperatureandmoderatebackingpressuresarestudiedbyRayleighscatteringtechniques.Theexperimentalresultsshowthatdeuteriumclusterscanbecreatedatmoderategasbackingpressuresrangingfrom8to23bar,andamaximumaverageclustersizeof350atomsperclusterisestimated.Thetemporalevolutionoftheclusterjetgeneratedatthebackingpressureof20bardemonstratesatwo-plateaustructure.Thepossiblemechanismresponsibleforthisstructureisdiscussed.Theformerplateauwithhigheraverageatomandclusterdensitiesismoresuitableforthegenerallaser-clusterinteractionexperiments.

简介：JUNA(JinpingUndergroundlaboratoryforNuclearAstrophysics)isplaningtomeasurethe13C(α,n)16OandsomeotherimportantreactionsatorclosetostellarenergiesusingintenseheliumbeamoutofanECRdrivenacceleratorinJinpingUndergroundlaboratory[1].Deuteriumimpurityinionsourcewillproducessignificantamountofneutrons,limitingthebackgroundlevel.Tocontrolthedeteriumimpurity,wehavedevelopedamethodtomeasurethedeuteriumimpuritywithinHeliumbeamusingthed(d,p)treaction.

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简介：重氢氰化物的高度激动的颤动的混乱动力学被二条独立途径探索：(1)Lyapunov分析基于为层次的古典阶段空间，并且(2)狄克逊剧降分析基于摆钟动力学和使量子化的层次的概念。结果证明在这二个算法之间有明显的关联。我们也建议剧降能为动态混乱的度作为一项质的措施被带的二附近的狄克逊之间的精力差别相互。

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