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. 2011 Mar 2;12(3):16–22. doi: 10.1120/jacmp.v12i3.3405

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© 2011 The Authors.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Figure 3(a) — Couch vs. gantry chart for vertical couch positions of 10 cm (green), 15 cm (black), and 20 cm (red), lateral offset of $- 10$ cm, and couch rotations from 0° to 90°. Every angle inside the lines (including the origin) is collision‐free.