632 / 1542
12 MeV
120
110
100
80
90
70
60
50
40
Large difference in photon beam and electron
beam penumbra
6 MV – 12 MeV junction
1 cm bolus
3 cm
3 cm
SSD=110
|
|
632 / 1542
12 MeV
120
110
100
80
90
70
60
50
40
Large difference in photon beam and electron
beam penumbra
6 MV – 12 MeV junction
1 cm bolus
3 cm
3 cm
SSD=110