Figure 1From: A dosimetric phantom study of dose accuracy and build-up effects using IMRT and RapidArc in stereotactic irradiation of lung tumoursMeasurement set-up. The outer PMMA cylinder was attached to a stereotactic frame (A) and the cork cylinders (B) were inserted inside. A frontal view of the Ø4.0 cm tumour surrounded by cork with film inside (C).Back to article page