
Figure 6
The relative total standard deviation, _{t}/a, as a function of sin/ is shown as black dots along with its two components _{c}/a and _{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. 