Gabriele Cosmo\page ExampleGammaTherapy Example GammaTherapy
\author I.Gudovska, V.Ivanchenko, S.Larsson \n Karolinska Institute & Hospital, Stockholm, Sweden \n CERN, Geneva, Switzerland
Electron beam of 50 MeV converted on target. All charged particles removed from the beam after the target. Gamma beam irradiate a water phantom. In front of the phantom a thin CheckVolume is placed to score gamma beam properties. Inside the phantom a score volume is placed to calculate radial radiation dose distribution.
GEOMETRY
GammaTherapy application geometry consists of along z:
-# Generator of electrons directed along z-axis -# Target1 (Be, W) -# Target2 (W, Cu) -# GasVolume (He) : all charged particles are killed inside -# CheckVolume (Air) : is sensitive for scoring in front of thephantom -# Phantom (H2O) : is sensitive for radioactive dose calculation -# Absorber in Phantom (H2O) : is sensitive for transverse dose calculation
World volume consists of Air.
STEERING
Geometry and other parameters can be defined by G4 UI commands.
Following macro files are prepared for different targets used in the real setup: be.in (thin Be target), be_w.in (thick BeW target), cu_w.in (thick Cu W target).
Only Physics Lists from physics_list kernal library can be activated. Corresponding UI commands are following
/testem/phys/addPhysics emstandard
/testem/phys/addPhysics emstandard_opt3
/testem/phys/addPhysics empenelope
/testem/phys/addPhysics emlivermore
The vis.mac file can be used as an example of visualization.
HISTOGRAMS
Built in histograms are provided.