MCP code fluorescence-routine revision

摘要: A new method is described for treating fluorescence, which replaces the original subroutine of Monte Carlo photon code (MCP), and eliminates its most undesirable features. The major changes include (a) elimination very inaccurats 1/E/sup 3/ law photoelectric cross section, b) updating relative intensities K-fluorescence lines, (c) fluorescence from shells other than K L, (d) provision secondary L-fluorescence. Except latter, previous unchanged, as well storage format. However, change in reflected constants, have been completely revised, are included here tabulated form. (auth)