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Varian eMC Global MC input
❑
Conventional MC simulations of electron transport performed in well defined
local
geometries (“kugels” or spheres).
❑
Local geometries are spheres of various sizes, material compositions and
incident electron energies:
o
5 materials: air, lung, water, lucite(PMMA) and solid bone
o
5 sphere radii: 0.5, 1.0, 1.5, 2.0 and 3.0 mm
o
30 incident energy values, between 0.2 and 25 MeV
❑
200 000 electrons per sphere were simulated using Monte Carlo with EGSnrc
Code System
❑
Results from simulations were collected to probability distribution functions
(PDFs):
o
Exit point and direction of primary electron
o
Energy of primary electron
o
Secondary particles (e- & γ) and their energies
❑
Global
: Particle transport through patient modelled as a series of macroscopic
steps, each consisting of one local geometry (“kugel”)
Dublin 2018
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