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The Halcyon radiation treatment system. (a) External view of the Halcyon system with a large bore size of 1 m diameter (b) Internal view of fixed kV source (“A” in figure), kV detector (“B” in figure), and MV beamline (“C” in figure). (c) Drawing of kV and MV beamline arrangement. [Color figure can be viewed at wileyonlinelibrary.com]
