FORMATION OF THE STRUCTURE OF A SURFACE LAYER IN MULTIPLE LASER DOPINGO. G. Devoino,a M. A. Kardapolova,a N. N. Dorozhkin,b and O. V. D'yachenkoa UDC 621.793 Results of investigations into the influence of multiple laser doping on the structure and properties of the layers formed are given. It is established that repeated treatment enables one to implement the processes of both "laser quenching" and "laser annealing." The possibility of attaining a smooth gradient of the properties in the layer depth is shown. aBelarusian National Technical University, Minsk, Belarus; bA. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, Minsk, Belarus. Translated from Inzhenerno -Fizicheskii Zhurnal, Vol. 76, No. 1, pp. 98-101, January-February, 2003. Original article submitted July 24, 2002.