两种衰变分支比的研究  

Research on Branch Ratio of Two Kinds of Disintegration

作　　者：黄亚伟[1] 

机构地区：[1]文山学院数理系,云南文山663000

出　　处：《文山学院学报》2010年第4期125-127,共3页Journal of Wenshan University

摘　　要：对跃迁到某一能级的比较半衰期或者称为部分比较半衰期ft1/2,i或logft1/2,i,与针对整个核衰变系统而言的比较半衰期fT1/2或logfT1/2作了比较和分析,它们是两个层次的概念,具有不同的对象。前者和部分衰变常量λi及衰变分支比I(或Ri)相联系,后者则和整个原子核衰变的衰变常量λ相联系,在研究和表述中应注意区别开来。作为一个例子,对101Mo基态跃迁到101Tc衰变实验中是如何提取比较半衰期的作了具体的描述。The paper compares and analyzes the comparative half-life disintegration or named as partly comparative half-life disintegration ft1/2,i or logft1/2,i transited to a certain power level and the comparative half-life disintegration fT1/2 or logfT1/2 for the entire system.They are two-level concepts,with different objects.The former is related to part disintegration constants λi and disintegration branch ratio I（or Ri）,but the latter is related to the nuclear disintegration constant λ of whole disintegration.They should be distinguished in study and predication.The paper takes ＇how to extract half-life disintegration in experiment on transition from the ground state 101Mo to 101Tc ＇as an example and gives a detailed description.

关 键 词：分支比 β-衰变 实验结果 提取比较半衰期 

分 类 号：O571.251[理学—粒子物理与原子核物理]