TABLE 4.

Summary statistics comparing fluence rate between simulation predictions and actinometry measurements by plane height, including means, RMSE, MRBE, and IQR of RBE.

Statistics	Measurement plane	WR			UR
		Photopia	Visual	Actinometry	Photopia	Visual	Actinometry
Mean ($\mathrm{\mu }$W/cm2)	Upper	0.6	0.6	1.4	49.5	76.0	41.2
	Lower	3.4	3.4	2.4	0.5	0.6	3.0
	Both	2.0	2.0	1.9	25.0	38.3	22.1
RMSE ($\mathrm{\mu }$W/cm2)	Upper	1.9	1.7	–	37.1	62.7	–
	Lower	2.1	2.1	–	3.3	3.2	–
	Both	2.0	1.9	–	26.3	44.4	–
MRBE (%)	Upper	−65	−70	–	−14	34	–
	Lower	−5	−21	–	−83	−78	–
	Both	−48	−52	–	−26	20	–
IQR of RBE (%)	Upper	20	14	–	18	38	–
	Lower	63	97	–	45	61	–
	Both	67	51	–	70	112	–