James,
This may be of interest:
Stutzman, P. (2005). "Powder diffraction analysis of hydraulic cements: ASTM
Rietveld round-robin results on precision," Powder Diffraction 20(2), 97-100.
The study design and statistical evaluation is based on ASTM E 691.
Regards,
Nicola
--
Nicola Döbelin
Dr
>From my understanding 'noise' is the random signal superimposed to the
background and the peaks. The signal to noise ratio would be peak above
background / random signal, and this should improve with longer
measurement time.
Nic
>>> "Michael Glazer" <[EMAIL PROTECTED]> 02/19/08 9:42 am >>>
As I
