Fig. 4
From: A model for preemptive maintenance of medical linear accelerators—predictive maintenance
Graphical representation of the position of an MLC from bank A during the VMAT QA delivery. The Y-axis is MLC position in centimeters and the X-axis is time in snapshots of 20 mSec. The segments of the delivery in which the speed is calculated are highlighted in red (snapshots 1780–1830) and light blue (snapshots 4115–4165). The segment used as the cross correlation baseline is shown in green (snapshots 2450–3200)