QUANTUM MECHANICAL STUDY OF THE INTERACTION OF RADIATION WITH MATTER

Abstract

In this project an attempt has been made, first to present the quantum mechanical formalism of the interaction of radiation with matter, the photoionisation of an atom and the photodisintegration of a deuteron. For this purpose we have developed the transition rates for harmonic perturbations based on the time dependent perturbation theory, in a way which enables to calculate the probabilities of finding the physical system in different quantum states, after perturbation is applied. The ejection of an electron from the ground state of one electron N-dimensional atom by the absorption of radiation of angular frequency or in other words by the absorption of a photon energy . It is noticed that as increases the total cross-section, ( ) decreases for N 10 and increases for N 10, so that ( ) does not change for N=10.