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新核素65Se半衰期的首次实验测定
First Experimental Determination of Half- Life for New Nuclide ̄(65)Se
【摘要】 根据40Ca(28Si,3n)反应中观测到的65Seβ延迟质子衰变实验数据,拟合计算粒子望远镜对运动放射源的绝对探测效率,精确测定了65Se的半衰期为9.6ms,其β延迟质子能量为3.70±0.08MeV,由此修订了65Se的部分衰变纲图.
【Abstract】 By using experimental data obtained from the measurement of beta-delayed proton decay of 65 Se produced in 40 Ca(28Si,3n)reaction,the absolute detection efficiency of particle telescope for rotating radioactive source was imitatively calcu-lated.The half-life of 65Se was thus accurately determined to be 9.6 ms.The β-delayed proton energy of 65Se was 3.70±0.08MeV.The partial decay scheme of 65Se β-delayed proton decay was revised and proposed.
【关键词】 新核素;
半衰期;
探测效率;
部分衰变纲图;
【Key words】 new nuclide; half-life; detection efficiency; partial decay scheme.;
【Key words】 new nuclide; half-life; detection efficiency; partial decay scheme.;
【基金】 国家自然科学基金,中国科学院“八五”重大科研项目
- 【文献出处】 高能物理与核物理 ,HIGH INERGY PHYSICS AND NUCLEAR PHYSICS , 编辑部邮箱 ,1996年02期
- 【分类号】O613.52
- 【下载频次】28