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. Author manuscript; available in PMC: 2010 Sep 21.
Published in final edited form as: Nucl Technol. 2009 Dec 1;168(3):736–740. doi: 10.13182/nt09-a9298

TABLE I.

Number of Voxels in the Patient Geometries and CPU Simulation Times per Incident Proton for the Various Simulation Programs*

Number
of Voxels		 MCNPX GEANT FDC
Processing Time per Proton
(s)
Narrow beam 53 244 0.2 0.45 2.9 × 10−3
Wide beam 491 680 0.58 5.0 2.9 × 10−3
*

Executed on AMD Opteron 2.2-GHz processors.