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. 2013 Jan 7;14(1):92–101. doi: 10.1120/jacmp.v14i1.3991

Table 1.

The percentage of dose overestimation under various thicknesses of wax when wax is treated as soft tissue for various energies of electron beams. Thicknesses effective for treatment depth modulation are listed for each energy.

Wax Thickness (cm) 0.5 1 2 3 4 5
6 MeV
1.4%±1.1%
3.2%±0.8%
9 MeV
0.6%±1.1%
1.3%±0.9%
3.1%±0.5%
12 MeV
0.4%±1.3%
0.2%±1.2%
1.6%±0.8%
2.5%±0.7%
15 MeV 0.1%±0.4%
0.1%±0.3%
0.9%±0.3%
1.4%±0.4%
1.9%±0.3%
18 MeV 0.2%±1.1%
0.6%±1.3%
0.3%±1.0%
1.1%±0.8%
1.7%±0.7%
3.1%±0.7%