摘要
以18 O重离子束轰击厚天然铅靶 ,通过多核子转移反应生成2 0 8Hg核 .辐照铅片放入离线熔化铅靶气相热色谱装置中处理 ,分离并收集汞元素产物 .完成了 4πΔEβγ γ ,γ X(γ)关联事件谱及γ射线时序单谱测量 .建议了 2 1条γ射线 ,以及能量为 1 3 65,1 72 7keV的两条2 0 8Tl新能级的2 0 8Hgβ- 衰变部分γ纲图 .
The 208 \ Hg has been produced in multi\|nucleon transfer reactions induced by 18 \ O ion beam on a thick,natural lead target.The irradiated lead pieces were put into agasthermochromatographic device, in which the Hg\|element products were separated and collected.The 4πΔ E \-β γ γ and γ X(γ) coincidence as well as time\|succesive γ\|ray single spectrum measurements were performed. A partial γ scheme following 208 \ Hg β\+- decay has been proposed for the first time, which has taken into account 21 γ\|rays and two new energy levels at 1365 and 1727keV,respectively.
出处
《高能物理与核物理》
CSCD
北大核心
2000年第9期823-828,共6页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金!( 1 95750 56)
中国科学院重大项目资助&&
