From: The GLAaS algorithm for portal dosimetry and quality assurance of RapidArc, an intensity modulated rotational therapy
Arc interval
GAI [%] mean ± SD
GAI [%] Range
178.0–171.8°
96.0 ± 0.7
171.8–165.7°
97.0 ± 0.8
165.7–159.6°
97.2 ± 0.7
6°
96.7 ± 0.9%
[95.1, 98.0]
178.0–165.7°
98.6 ± 0.5
165.7–153.4°
97.8 ± 0.2
153.4–141.2°
96.6 ± 0.9
12°
98.0 ± 1.1%
[95.6, 99.0]