Table 8.

Composite Gafchromic film and ion chamber results for the measurements in the high‐dose and low‐dose region for both IMRT and RapidArc plans

	6XFFF		10X FFF
Plan	Global Gamma $3\%/3 \text{mm}$	Point Dose (Percent Difference)	Global Gamma $3\%/3 \text{mm}$	Point Dose (Percent Difference)
Hard C IMRT (PTV)	90.6	3.5%	90.0	4.7%
Hard C IMRT (low dose)	87.4	2.4%	91.1	11.9%
Hard C RA (PTV)	93.0	$-0.5\%$	97.5	$-0.1\%$
Hard C RA (low dose)	95.2	$-4.2\%$	98.7	2.4%
HN IMRT (PTV)	94.1	1.0%	98.1	2.5%
HN IMRT (low dose)	97.0	0.4%	99.5	1.3%
HN RA (PTV)	97.9	0.4%	98.7	$-0.4\%$
HN RA (low dose)	98.1	0.2%	98.4	$-0.2\%$
HN SIB IMRT (PTV)	97.5	$-0.9\%$	98.9	1.0%
HN SIB IMRT (low dose)	98.6	$-0.2\%$	97.5	1.7%
HN SIB RA (PTV)	99.0	$-0.4\%$	98.1	$-0.7\%$
HN SIB RA (low dose)	98.1	0.7%	97.8	0.5%
Prostate IMRT (PTV)	95.7	$-1.8\%$	98.2	$-0.1\%$
Prostate IMRT (low dose)	89.6	$-3.1\%$	95.3	$-0.2\%$
Prostate RA (PTV)	99.1	$-1.0\%$	99.3	0.0%
Prostate RA (low dose)	95.7	$-3.1\%$	99.4	$-1.9\%$
Prostate LN IMRT (PTV)	86.2	$-0.9\%$	99.0	$-0.5\%$
Prostate LN IMRT (low dose)	96.2	$-0.8\%$	98.9	$-0.2\%$
Prostate LN RA (PTV)	98.7	0.6%	99.2	0.4%
Prostate LN RA (low dose)	99.0	1.7%	97.9	1.6%
SIMT RA (low dose)	98.9	2.9%	100.0	$-0.7\%$