Figure 1
Geometry of the beamline and phantom considered in the Geant4–SHADOW simulation, showing diaphragm (DIA); krypton filter (KF) (Condition 2 only); horizontal and vertical primary slits (PS); low-energy filters (FLT); either Compton chamber (CC) (Condition 2 only) or ionization chamber (IC) (Condition 1 only); exit windows (EXT); vertical slits (VS); multi-slit collimator (MSC); clinical ionization chamber (IC0bis); and vertically scanned water-equivalent phantom (PHAN). Dimensions not to scale. |