Bob, Thanks a lot for the info.
regards, Sajeev Moorthiyedath Cabot Corporation 5401 Venice Ave NE Albuqerque, NM 87113 direct (505) 563 4426 fax (505) 342-2168 "Von Dreele, Robert B." <[EMAIL PROTECTED] To v> <rietveld_l@ill.fr> cc 06/29/2006 12:19 PM Subject Crystal size in GSAS Please respond to rietveld_l@ill.fr Sajeev, There is a lot of information like this in the GSAS Manual. Bob Von Dreele R.B. Von Dreele IPNS Division Argonne National Laboratory Argonne, IL 60439-4814 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, June 29, 2006 11:31 AM To: rietveld_l@ill.fr Hi, I am wondering if GSAS calculates the crystal size? If not how can I calculate the crystal size? I am using a profile type 3 function (psedo voight) and obtaining the GU,GV,GW values as 0,0, 1.27 E+04 for a Pt/C phase respectively. The Chi-square fit is 2.164. Thankyou. regards, Sajeev Moorthiyedath