Table 2.

Optimal parameter values of the multi-leaf collimator (MLC) scatter source for a 6 MV beam

Parameters	Jaw-defined field size X × Y (cm2)
	10 × 10	20 × 20	30 × 30
ES mlc,out
a out	0.016	0.016	0.017
b out	0.820	0.797	0.751
σ out	17.891	45.942	403.412
ES mlc,in
a in	0.014	0.009	0.007
b in	0.503	0.456	0.404
σ in	32.418	57.543	450.124

Parameters were used in Eq. (12)