Table 2.

Differences between the potentiometer and EPID header angles, including time delays and linear fits

		EPID Image Headers
		Uncorrected $({\mathrm{t}}_{\mathrm{d}}=0)$			Time Delay Corrected $(t_d=0.267s)$	Boxcar Time Delay Corrected
Linac	Trial	Absolute Mean Diff.	St. Dev.	$\%\hspace{0.17em}\mathit{\text{Within}}\pm 1^{\circ }$	$\%\hspace{0.17em}\mathit{\text{Within}}\pm 1^{\circ }$	$\%\hspace{0.17em}\mathit{\text{Within}}\pm 1^{\circ }$
#1	CW1	0.95	0.78	49.7	76.1	99.5
	CW2	1.32	0.82	40.2	76.6	99.5
	CW3	1.36	0.81	23.3	75.0	100
	CCW1	1.06	0.89	41.2	73.8	98.9
	CCW2	1.12	0.89	39.0	71.6	97.8
#2	CW1	1.10	0.74	35.6	80.6	100
	CW2	1.01	0.75	46.4	81.8	98.9
	CW3	1.18	0.73	37.0	79.2	100
	CCW1	1.35	0.84	27.9	74.9	98.9
	CCW2	1.06	0.87	43.4	73.6	99.4
	CCW3	1.46	0.90	30.2	64.3	99.4
#3	CW1	1.65	0.78	21.6	75.8	98.9
	CW2	1.18	0.79	40.3	74.3	99.5
	CW3	1.51	0.78	25.8	77.4	100
	CCW1	1.55	0.76	24.6	69.1	98.9
	CCW2	1.24	0.73	34.0	80.1	100