Abstract
The problem of reconstructing the light-impurity concentration profile in a heavy matrix in the method of resonance nuclear reactions is considered. The principal physical and experimental factors affecting the shape of the yield curve in this method are discussed in detail. An integral equation is derived by taking account of the energy spread of the initial ion beam, the energy-loss straggling, the width and shape of the resonance, and the influence of the Doppler effect. A package of programs is developed for solving this equation by using the Tikhonov regularization method, which makes it possible to correctly take into account the error in the experimental determination of the yield as well as the approximate nature of the model used to describe the interaction of the ion beam with matter. The concentration profile of oxygen ions implanted with an energy of 150 keV into a silicon single crystal is reconstructed and the effect of resonant laser radiation on diffusion in such a system is studied.
Published Version
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