Quanto
General Information
Work supported by the Italian CNR, Progetto Finalizzato "Beni Culturali".
Quanto is a Rietveld package for quantitative phase analysis (QPA).
It is devoted to automatically estimate the weight fraction of each crystalline phase in a mixture by means of its powder diffraction pattern.
A Data Bank containing several organic and inorganic phases is available with the program.
Quanto Main features
· require a minimal information in input;
· work automatically;
· reduce the user intervention and facilitate his interaction by means of a useful graphic interface;
· allow the user management of the Quanto Data Bank containing structural phase information;
· model preferred orientation (PO) effects by means of the March-Dollase function
· correct microabsorption effects by means of the Brindley correction
· estimate the amorphous content by means of the internal standard method.
· Handle an external reflection intensities file for phases of unknown crystal structure
· Extract integrated intensity of reflections by means of the Le Bail algorithm
· Fit anisotropic broadening of peaks