From: Can prophylactic breast irradiation contribute to cardiac toxicity in patients with prostate cancer receiving androgen suppressing drugs?
Beam energy
Surface dose
Therapeutic depth
Depth of 50% isodose
6 MeV
72%
20 mm
24 mm
9 MeV
78%
30 mm
38 mm
12 MeV
83%
40 mm
50 mm