Figure 6
The relative total standard deviation, [sigma]t/a, as a function of sin[theta]/[lambda] is shown as black dots along with its two components [sigma]c/a and [sigma]p/a, where the subscripts c and p refer to counting statistics and particle statistics, respectively. At small wavevector transfers the uncertainty of the scale factor a is dominated by particle statistics, whereas at high wavevector transfers the major contributor to the total uncertainty is the counting statistics.  [article HTML]

© International Union of Crystallography 2014