Hi, everyone, I am a newcome to Rietveld refinement. Actually I am a student majored in photocatalytic splitting water for hydrogen production. We want to analysis the structures of our photocatalysts via rietveld method. For that purpose we got a X'pert Pro diffractionmeter from Panalytica about 3 years ago. But rietveld is too difficult to start. Now I have read some books and downloaded some programs from ccp14 such as fullprof, checkcell and so on. Also I have tested some examples. However I am still confused. How can I determine the initial value of some parameters such as U, V and W. Maybe I need a Instrumental Resolution Function file, but how can set that file?
Can anybody give me some advice about this? thanks a million. -- Mingtao Li State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power Engineering Xi'an Jiaotong University Xi'an, 710049 P.R.China Tel: +86-29-8266 8296 Fax: +86-29-8266 9033 Email: [EMAIL PROTECTED]