Title: Message
Hallo
Maria,
Temperature factors are strongly correlated with
surface roughness. Refining them using X-rays easily lead to rediculously
large positive values or even negative values. My advice would be
to fix them at the theoretical values, especially for the QPA of
a com
Hallo Andreas,
We have been using the cheapest hairspray in town. Just hold the
aerosol can about 50 cm from the surface and spray gently.
Alternatively, try mixing some instant coffee with the powder.
Regards,
Johannes
Johannes J. Retief
Sasol Technology (Pty) Ltd
P. O. Box 1
1947 SASOLBU
Hallo All,
We are using Rietveld refinement for quantitative phase analysis. I would
like to know just how "quantitative" it really is, on an absolute as well as
a relative basis. The sample is obviously a large source of error. Does
anybody know what relative errors one can expect, or can som
Hallo Colleagues,
We have been using the new X'Pert Pro of Philips for five months now. As we
purchased this instrument for high-temperature, high-pressure applications,
we are more interested in intensity than in resolution at the moment. We
therefore operate the instrument with a 0.5 mm rece
