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. Author manuscript; available in PMC: 2014 May 4.
Published in final edited form as: Phys Med Biol. 2008 Jun 9;53(13):R193–R241. doi: 10.1088/0031-9155/53/13/R01

Figure 2.

Figure 2

18 MV out-of-field dose data as a function of distance from the central axis for (a) conventional and (b) IMRT treatments (including 3D-CRT datasets for comparison). All conventional photon measurements were taken in a slab phantom using a 10 cm × 10 cm field size at a depth of 10 cm. The data of Kry et al (2007a) are from Monte Carlo simulations using a 10 cm × 10 cm field size at a depth of 3.75 cm. The neutron dose equivalents from conventional procedures provided by Zanini et al (2004) and Ongaro et al (2000) are from Monte Carlo simulations. For the conformal treatments both IMRT and 3D-CRT are considered. Data from measurements and simulations that accounted for photons or neutrons or both are provided. The prostate is the treatment site for all studies considered. All data are given in dose equivalent per MU.