if I remember well, Fd-3m and 5.43�. BTW, don't trust the flat plate sample distributed with your Philips goniometer, it is terribly grainy (you can see it with the naked eye) and you will never get a reasonable Rietveld fit with it!
miguel On 2 Feb 2005 at 15:40, [EMAIL PROTECTED] wrote: > Dear colleagues > > can anyone remind me the space group and lattice constants of the Si > standard (flat plate) used in the Philips APD B-B diffractometer? > Since I will like to do some comparison studies using GSAS. > > Many thanks, > > regards > > stephen > > -- Miguel Gregorkiewitz Dip Scienze della Terra, Universit� via Laterino 8, I-53100 Siena, Europe fon +39'0577'233810 fax 233938 email [EMAIL PROTECTED]
