a question about GSAS...

2005-04-07 Thread Marco Sommariva
Dear Rietveld's users, I have a question about GSAS: my TOF neutron diffraction profile exhibits a broadening of some low intense superstructure peaks where the index l is =2n+1 (tetragonal I cell). I'd like to do a refinement where this effect is taken in account. The superstructure is probably

Re: Size Strain In GSAS

2005-04-07 Thread Nicolae Popa
Hi, Long text but not fully convincing. At least concerning my questions (still posted at the bottom). I'm risking a hurry reply without reading all references (including to be published and PhD Thesis). See comments below. that likelihood term is described by a goodness of fit, say chi-square