Figure 2
From: Functional intercomparison of intraoperative radiotherapy equipment – Photon Radiosurgery System
Set-up used for Depth Dose Measurements. Experimental set-up used to obtain Depth-Dose curves showing the x-ray source, custom-built water phantom and acrylic backscatter material of dimensions 30 cm × 30 cm × 10 cm. A low kV x-ray parallel plate ionisation chamber (PTW N23342) was used to measure the dose at distances of 10 to 35 mm away from the tip of the probe, in increments of 1 mm.