ARITVE models glass structures by a Rietveld-type approach. It is a 10-year-old package slightly modified and recently re-used to simulate the structure of glassy SiO2 (J. Non-Cryst. Solids, 183, 1995, 39-42). Full details are in aritve.txt, the manual including other references for previous applications (for instance Pb2M2F9 and BaZr2F10 fluoride glasses and amorphous FeF3,xHF).
Three versions are available for :
Executing the test files (SiO2) with ARITVE for 90 refinement cycles takes 6 minutes on a DEC4620 ; 12 minutes on a Pentium 100Mhz (WINDOWS 95) ; 44 minutes on a Pentium 90Mhz with the16 bit version.