MRIA - a program for a full profile analysis of powder multiphase neutron-diffraction time-of-flight (direct and Fourier) spectra

The paper describes a universal program MRIA for the full profile analysis of powder neutron-diffraction time-of-flight direct and Fourier spectra. The minimum configuration of MRIA, analysing up to four spectra, four phases, 500 Miller indices for every phase and 100 independent atoms, can run on an IBM PC-AT or any compatible. The extended variant of the program, analysing data of larger size, runs on a MicroVAX computer. Part of MRIA, providing necessary service functions for a PC user, is written in TurboPascal 6.0. The basic programs of MRIA are written in standard Fortran77 and can be compiled by RMFORT or MSFORT77 and by an NDP compiler on a 32 bit PC.