Table 1.

Monte Carlo PCXMC estimates of organ dose on the variation of Zref

	Organ Dose (μGy)
Organ/Zref.	75 cm	77.5 cm	80 cm	82.5 cm	83 cm (CL)	85 cm	87.5 cm	90 cm	92.5 cm
Brain	18.37	38.27	107.35	239.67	269.58	389.1	501.96	527.39	465.4
Esophagus	21.2	7.53	3.86	2.79	2.93	1.55	0.47	0.36	0.5
Salivary glands	463.58	715.93	783.88	763.54	738.29	609.18	308.01	71.91	26.6
Thyroid	928.77	486.49	113.07	49.54	46.97	32.25	14.39	9.65	2.46

CL centerline