Table 1.

Comparison of dosimetric parameters of lateral dose profiles at mid‐range of SOBPs in a Solidwater^® phantom

SOBP	Penumbra 20%–80% (mm)			Half‐width of 95% shoulder (mm)			Half‐width of 5% shoulder (mm)
	Meas	AcurosPT	Topas	Meas	AcurosPT	Topas	Meas	AcurosPT	Topas
R120M40	8.0	8.3	8.3	41.7	40.8	40.8	58.3	59.2	59.2
R200M100	7.8	8.1	8.0	39.7	38.5	39.2	56.5	57.9	57.3
R305M100	10.2	11.8	10.7	37.4	34.6	36.0	59.8	63.3	61.0