A Improved Version of ISICS

The C++ program, ISICS, which calculates K, L, M sub-shell ionization and x-ray production cross sections from the PWBA and ECPSSR theories, has found much use in basic and applied research. The following improvements have been added to the original version: united-atom option for the binding energy correction, easy inputting of new atomic parameters, along with corrections of minor bugs in the original version. Sample results will be demonstrated.