Table 1.

ESAK with BS, Tube Potential (Peak Kilovoltage), and Added Filtration (Millimeter Cu), SNR, and HCSR Parameter for All the Acquisition Modes and All PMMA Thicknesses Used in the II X-ray System (Adult Patients Protocol)

PMMA (cm)	Acquisition mode	ESAK (µGy/fr)	Tube potential (kVp)	Filter (mm Cu)	SNR for matrix 512 (for circle 2)	SNR for matrix 1,024 (for circle 2)	HCSR for matrix 512 (for 8th group of the central grid)	HCSR for matrix 1,024 (for 8th group of the central grid)
16	FLD	5.2	66	0.6	3.8 ± 0.3	2.9 ± 0.2	3.3 ± 0.4	56.8 ± 3.1
16	FND	5.9	66	0.6	4.3 ± 0.1	3.6 ± 0.1	3.4 ± 0.1	60.7 ± 3.4
16	FHD	7.3	66	0.6	5.0 ± 0.6	4.1 ± 0.4	3.1 ± 0.6	56.5 ± 9.3
16	CLD	39.4	64	0.6	6.2 ± 0.5	5.1 ± 0.3	3.2 ± 0.3	60.0 ± 1.5
16	CND	56.0	64	0.6	6.9 ± 0.5	5.6 ± 0.6	3.7 ± 0.1	66.9 ± 1.5
20	FLD	13.1	72	0.3	3.3 ± 0.1	2.6 ± 0.2	1.8 ± 0.7	34.6 ± 6.3
20	FND	16.5	68	0.3	4.4 ± 0.2	3.3 ± 0.4	2.7 ± 0.3	46.6 ± 3.2
20	FHD	19.6	68	0.3	4.2 ± 0.2	3.4 ± 0.1	3.3 ± 0.3	54.1 ± 3.5
20	CLD	112.0	66	0.3	6.0 ± 0.8	4.9 ± 0.3	2.6 ± 0.1	50.0 ± 5.2
20	CND	177.0	68	0.3	5.9 ± 0.5	5.4 ± 0.6	2.9 ± 0.1	54.6 ± 0.7
24	FLD	18.9	74	0.3	3.0 ± 0.5	2.5 ± 0.5	1.9 ± 0.2	31.7 ± 1.1
24	FND	23.4	68	0.3	3.4 ± 0.1	2.9 ± 0.1	2.4 ± 0.7	44.4 ± 7.6
24	FHD	27.7	68	0.3	3.6 ± 0.1	3.0 ± 0.1	2.8 ± 0.3	50.6 ± 1.4
24	CLD	201.0	68	0.3	5.5 ± 0.2	4.5 ± 0.2	2.8 ± 0.2	49.0 ± 2.1
24	CND	291.0	70	0.3	5.3 ± 0.2	4.7 ± 0.3	2.6 ± 0.4	47.0 ± 1.6
28	FLD	49.9	81	0.2	2.1 ± 0.1	1.8 ± 0.1	1.2 ± 0.3	18.6 ± 3.8
28	FND	79.6	78	0.2	2.2 ± 0.1	2.0 ± 0.1	1.9 ± 0.3	32.1 ± 2.3
28	FHD	85.5	82	0.2	2.5 ± 0.1	2.2 ± 0.2	1.3 ± 0.3	23.4 ± 0.7
28	CLD	385.0	83	0.2	2.9 ± 0.4	2.4 ± 0.2	1.1 ± 0.2	19.0 ± 1.5
28	CND	672.0	86	0.2	3.5 ± 0.2	3.1 ± 0.3	1.3 ± 0.1	21.1 ± 1.6

FOV 23 cm