用量子隧道效应计算α放射性元素的半衰期

Calculating the Half-life of α Decay with Quantum Tunneling Effect

人们已经可以通过实验来测量α放射性元素的半衰期.本文通过对α衰变机制的分析,发现了用经典理论解释α衰变现象的困难,然后引入了量子隧道效应的理论,圆满解释了这个现象,并以238U为例,从理论上计算出了α衰变的半衰期,理论值与实验值大致一致.

The halflife of αradioactive elements has already been measured out through experiments. But, classical theory's failure to explain the phenomenon of αDecay is found in this article according to the analysis of the mechanism of αDecay. And in this article, this problem is completely settled through introducing of the theory of quantum tunneling effect yet. Furthermore, the halflife of αDecay of238U is illustrated and figured out with this theory, and is approximately in accordance with the figure of experiments.