Table 5.

${\displaystyle Q_{fit}}$ obtained for consistent IAKR on a Siemens Artis Zee system with varying peak voltage and copper filtration thickness settings. *Excluded from calculation of mean and standard deviation

Test	Settings	Model $Q_{fit}$ (a)	Dev. from mean	Formula $Q_{fit}$ (b)	Dev. from mean
1	66.4 kVp, 1.0 mm Cu	0.73	0.01	0.75	0.00
2	73.8 kVp, 1.5 mm Cu	0.75	0.01	0.74	0.01
3	80.4 kVp, 2.0 mm Cu	0.73	0.01	0.72	0.03
4	86.7 kVp, 2.5 mm Cu	0.75	0.01	0.80	0.05
5	*86.7 kVp, 3.0 mm Cu	0.66	0.08	0.83	0.08
	Cal: 80.0 kVp, 2.0 mm Cu	0.73	0.01	0.72	0.03
	Mean	0.74	±0.01	0.75	±0.03
	Std. Deviation		(±1.35%)		(±4%)