J Med Phys Close
 

Figure 2: (a) Bilateral Cranial Field; (b) Cervicothoracic Spine Field; (a and b) is half beam blocked fields sharing Isocenter 1. Y1 is Diverging plane of B

Figure 2: (a) Bilateral Cranial Field; (b) Cervicothoracic Spine Field; (a and b) is half beam blocked fields sharing Isocenter 1. Y1 is Diverging plane of B