Hello, I have been using the GSAS software to analyse some XRD data from MgH2 samples that have been heavily milled. One piece of information I would like to assertain is the mean particle size of my powders. The powders are of the order of 10 nm by TEM. Some relevant information; I am using a type 2 profile function. My data is horrible with very broad peaks of very low intensity. I have had to set the GU GV and GW parameters in order to do anything at all. If I let them float then I lose any semblance. I get a Chi2 < 1.
My question is this; How do I obtyain the particle size? Is it the LX parameter and is this measured in Angstroms? I hope someone will be kind enough to help me out of this mire! Regards Dave Weston Research Fellow Department of M3 Wolfson Building University of Nottingham This message has been checked for viruses but the contents of an attachment may still contain software viruses, which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.