Table 2.

Values of the fitting parameters and associated uncertainties for 6, 10 and 15 MV energies in red, green and blue colour channels

Parameter	Value (cGy)
	6 MV			10 MV			15 MV
	Red	Green	Blue	Red	Green	Blue	Red	Green	Blue
a	524.9	1035	2930	526.1	1016	2831	490.56	1064	2712
b	3598	5492	1.50E+04	3483	5486	1.54E+04	3592.91	5082	1.59E+04
σa	15.38	25.63	55.51	24.56	36.59	42.75	37.98	15.91	73.06
σb	48.72	118.2	627.2	76.45	167.7	477.2	118.68	71.44	804.9