Table 1.

The average full width at half maximum (FWHM) as a function of defocus of the power in the gold 111 reflection by experiment and simulation. The fading of the power with defocus was measured experimentally for inelastically scattered electrons with different energy losses. $N$ is the number of particles used at each experimental energy and the error reported is the 95% confidence interval (see Fig. 4 for examples). The experimental values are compared to those determined with simulations using different methods (Sections 3.5.1, 3.5.2, 3.5.3)

	Experimental		Simulated FWHM
Energy loss	FWHM	$N$	CTF	Envelope function	Multislice
9 eV	5600 ± 800 Å	10	5200 Å	5600 Å	5800 Å
15	3400 ± 500	9	3400	3700	3500
23	2600 ± 200	13	2400	2600	2200
30	1800 ± 300	11	2000	1600	1700