在^(20)Na β延迟α衰变中观察到的新衰变道  

A New Decay Channel Discovered in the β-Delayed α Decay of ^(20)Na

作　　者：徐晓冀[1] 郭俊盛[1] 胡志强[1] 周晓红[1] 马瑞昌[1] 刘洪业[1] 李桂生[1] 杜一飞[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》1993年第7期577-581,共5页High Energy Physics and Nuclear Physics

基　　金：中国科学院八.五重大项目子课题;国家自然科学基金

摘　　要：用高能物理研究所直线加速器提供的35.5MeV质子轰击浓缩氖靶,得到了^(20)Na的β延迟α衰变谱,在谱中0.78MeV处观察到一个新峰,由粒子鉴别、粒子能谱和寿命测量确信,它是来自^(20)Na的β延迟α衰变中首次被观察到的低能α衰变道。The enriched neon was bombarded by 35.5MeV protons from linear accelerator at Institute of High Energy Physics. The spectra of beta delayed alpha decay of ^(20)Na were obtained. A new peak at 0.78MeV was observed in the spectra. From the particle identification, particle spectra and the life time measurement it was believed that the peak at 0.78MeV was from low energy alpha decay channel first observed in the beta delayed alpha decay of ^(20)Na.

关 键 词：Α衰变 衰变道 钠20 β延迟 

分 类 号：O571.321[理学—粒子物理与原子核物理]