Table 7.

ArcCheck Measurement results for the five patient test plans

Patient	0 cm lateral offset – All Beams γ (3%/3 mm)		±8 cm lateral offset – Chest beams γ (3%/3 mm)
	Average	Std Dev	Average	Std Dev
1	99.5	0.5	99.2	0.8
2	99.7	0.5	98.4	1.1
3	99.0	0.9	99.2	0.3
4	99.0	1.4	99.0	0.8
5	98.6	0.7	97.9	1.1