ISICS: A program for calculating K-, L- and M-shell cross sections from ECPSSR theory using a personal computer Original Research Article

A versatile and fast C-language program has been developed to exactly calculate ionization and x-ray production cross sections using the ECPSSR theory. All elements and any projectile can be selected for any range of energies and energy increments. Coulomb excitation form factors are numerically calculated in the program. Comparisons are presented between program calculations and those obtained by standard procedures from other sources. The program is available in compiled form and in source code for modification by the user. User options include selecting a relativistic calculation of the projectile ion velocity. Electron capture by the projectile is not incorporated into the program at this time.