. 2019 May 16;20(6):160–169. doi: 10.1002/acm2.12600

Table 3.

Slit camera measurement: small focal spot sizes (nominal focal spot size: 0.60 mm) measured at various exposure levels, compared between those of the screen‐film (SF) and computed radiography (CR) systems.

Tube voltage (kVp)	mAs	Exposure (mR)	Width (mm)		d (%)^a	Length (mm)		d (%)^a
Tube voltage (kVp)	mAs	Exposure (mR)	SF	CR	d (%)^a	SF	CR	d (%)^a
60	2.4	8.30	0.80	0.83	3.75	1.20	1.18	−1.67
60	3.0	12.27	0.80	0.78	−2.50	1.20	1.18	−1.67
70	1.8	6.17	0.80	0.78	−2.50	1.20	1.16	−3.33
90	1.2	7.27	0.80	0.83	3.75	1.20	1.23	2.50
CV (%)			0.0%	3.1%		0.0%	2.2%

Percent difference from SF, %.