Program PRIMUS perfoms the manipulations with experimental small-angle scattering data files such as: averaging, subtraction, merging, extrapolation to zero concentration and curve fitting and evaluates the integral parameters from Guinier and Porod plots such as radius of gyration (for globular, flat and rod-type particles), Porod's volume, zero intensity and molecular weight. PRIMUS is compiled using Intel Fortran v.11.0 with QuickWin graphics library and runs under MS Windows 95/98/NT/2000/XP/Vista or under Windows emulators (like WINE) installed on Linux/MAC.
The program PRIMUS allows one to make interactive manipulations with data, which is convinient for users and that saves a lot of time.