Basic Treatment Planning

Energy Selection

• Higher maximum dose in plan with lower energy • Lower isodose lines reach a greater depth with higher energy (See 50% isodose line on previous slide) • Increased skin sparing with higher energy  6MV dmax = 1.6 cm  15MV dmax = 3 cm

*Consider the patient separation *Consider the need for dose on skin or in the build up region (superficial target)