Energy Modulated Photon Radiotherapy: A Monte Carlo Feasibility Study

Table 1

Characteristics of Monte Carlo simulated percentage depth dose curves for various beam energies. The measured percentage depth dose data were shown in bold.

Relative dose/%	Depth/cm
	10 MV		6 MV		5 MV	4 MV	3 MV	2 MV
	Monte Carlo	Measured data	Monte Carlo	Measured data	Monte Carlo	Monte Carlo	Monte Carlo	Monte Carlo
100	2.4	2.4	1.5	1.6	1.3	1.1	0.7	0.5
90	5.6	5.5	4.2	4.2	3.8	3.3	3.1	2.9
80	8.2	8.2	6.6	6.6	6.0	5.7	5.2	4.7
70	11.1	11.1	9.2	9.2	8.6	8.0	7.4	6.9
60	14.5	14.4	12.0	12.0	11.3	10.4	9.6	9.0
50	18.3	18.3	15.0	15.2	14.3	13.2	12.2	11.2