新核素<SUP>209</SUP>Hg的首次观察

新核素²⁰⁹Hg的首次观察

摘要: 报道了新重丰中子汞同位素２０９Ｈｇ的首次观察．The new neutronrich mercury isotope ²⁰⁹Hg has been identified from the separated mercury products producted in 600 MeV 18O+natPb (thick target) reaction. An online, gasthermochromatographic technique and a special detection method were used. Four γ rays following the ²⁰⁹Hg decay were assigned. The halflife of 209Hg was determined to be 35+9-6 s. 

Abstract: The new neutronrich mercury isotope ²⁰⁹Hg has been identified from the separated mercury products producted in 600 MeV 18O+natPb (thick target) reaction. An online, gasthermochromatographic technique and a special detection method were used. Four γ rays following the ²⁰⁹Hg decay were assigned. The halflife of 209Hg was determined to be 35+9-6 s. 