New Heavy Neutron-Rich Nuclide Hg-209

Jh Zhao,L Zhang,Jw Zheng,Jc Wang, Z Qin,Yf Yang,C Zhang,Gm Jin,Gh Guo,Yf Du,Tr Guo,Tq Wang, B Guo, Jf Tan

HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION（1998）

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摘要

The new neutron-rich nuclide Hg-209 has been identified for the first time. An on-line, gas-thermochromatographic technique was developed for rapidly separating mercury isotopes produced by 600MeV O-18 + (nat)pb (thick target) reaction. A special detection method was used to detect the beta(-)-delayed gamma rays from, neutron-rich mercury isotopes. The half-life of Hg-209 was determined to be 35(-6)(+9)s.

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关键词

new nuclide, multinucleon transfer reaction, half-life

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