mfisch Hi all, I noticed that often in Pawley refinement, the background gets bent. Is it possuble to dampen the standard background in TOPAS (bkg @ 0 0 0 without adding all the parameters separately bkg = prm1; =prm2; etc...)? Cheers Martin
alancoelho See I_Penalty at http://topas.dur.ac.uk/topaswiki/doku.php?id=pawley_refinement_and_background_fitting