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