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Figure 1 :In-air depth dose distributions along the z axis for electron beam energy of (a) 6, (b) 12, and (c) 20 MeV for field sizes of 8 8 cm2, 20 8 cm2, 35 8 cm2, and 35 35 cm2

Figure 1 :In-air depth dose distributions along the z axis for electron beam energy of (a) 6, (b) 12, and (c) 20 MeV for field sizes of 8  8 cm2, 20  8 cm2, 35  8 cm2, and 35  35 cm2