Software for reflectivity calculations of x-ray mirrors. Revision 1

With VAX software and the data libraries of Henke and Biggs-Lighthill, we have created a library of atomic scattering factors f1 and f2 in the energy range 0.1 keV to 10.0 keV. Scattering factor values for the elements Z = 1 to Z = 94 and in the above energy range are stored in a keyed access library (key = element symbol). This library allows one to calculate reflectivity rapidly and fold it with other components in an x-ray detector channel. Additional software allows the library data to be easily extended to higher energies. Applications have so far included KB x-ray microscopes and low energy spectrometers with mirror channels