System of programs for determination of cyclotron magnet parameters by the given dynamic characteristics of the beam

A problem of determination of cyclotron magnet parameters by the given beam dynamic characteristics is considered. The calculation of the magnetic of spiral-sector and radial-sector cyclotrons is based on series of two-dimensional calculations at various cross sections of the magnet to be followed by reconstructions of the spatial map. The method is proposed to solve the inverse problem of determination of the magnet geometry for the given purpose functions. This can be achieved by the algorithm used in the program PISA. The program was checked by calculation of a spiral-sector cyclotron magnet. The state of the magnet core was held to be close to saturation. the developed program system allows to obtain a unique optimum solution for formation of required characteristics of the cyclotron magnet at the given set of parameters and values of weighting factors and the regularization vector. The program system can be used both for initial choice of cyclotron magnet parameters and for their correction at the facility under investigation