ABSTRACT
This chapter discusses some points which arise in comparing the relative numbers of quanta and long-range. It will be assumed that the α-particles form a normal quantum-mechanical system capable of existing temporarily in a series of secondary states, and that the energy differences of these states are shown by the γrays and groups in theβ-ray spectrum. The change in the inner potential compensates for the change in the quantum number which also occurs in the formula. The model on which Gamow, and also Gurney and Condon, based their calculations of the rate of disintegration of an α--ray body consisted of an a-particle of energy E in a quasi-stationary state inside a potential barrier. However, it is generally recognised that the essential exponential factor in the formula for the disintegration constant is obtained if a more general standpoint is taken. The excited α-particle is assumed to escape at once, for instance it is said that the a-particle passes straight out.
