274 / 1542
Dose Deposition Kernel Low Energy
Low energy
: electron range much shorter than photon mean free path
Small primary dose region (short BU distance and steep penumbra)
Wide scatter dose region (high dose outside field)
Isotropic isolevels (large amount of backscatter)
From: A. Ahnesjö and M.M. Aspradakis, Dose calculations for external photon beams in radiotherapy. Phys
Med Biol 44 (1999), pp. R99–R155.