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. Author manuscript; available in PMC: 2009 Jul 17.
Published in final edited form as: Phys Med Biol. 2007 Oct 1;52(20):6073–6091. doi: 10.1088/0031-9155/52/20/001

Figure 1.

Figure 1

Axial cross section through the centre of mass of the cylindrical phantom. RP is the phantom radius, RT is the radius of the base tumour region (6 cm), and RB is the radius of the boost region circle, on which the centres of all boost regions lay. The radius of boost region m is rm (m=1,…6), which increases in size linearly between 1.5 mm and 10 mm. Each boost region is contained by a local evaluation region, which is defined as a disc of radius 4 mm greater than that of the corresponding boost region.