Optimized Voxel Model Construction and Simulation Research in BNCT

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LI Gang and DENG Li. Optimized Voxel Model Construction and Simulation Research in BNCT[J]. Chinese Physics C, 2006, 30(2): 171-177.
LI Gang and DENG Li. Optimized Voxel Model Construction and Simulation Research in BNCT[J]. Chinese Physics C, 2006, 30(2): 171-177. shu
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Received: 2005-02-02
Revised: 2005-09-27
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Optimized Voxel Model Construction and Simulation Research in BNCT

    Corresponding author: LI Gang,
  • Graduate School of China Academe of Engineer Physics, Beijing 100088, China2 Lab. Com. Phy., Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Abstract: The voxel model of Snyder head phantom is widely used in simulation of BNCT. This paper introduces a simplified method which is based upon only four kinds of materials. The new voxel model keeps the mass conservation when the mesh size is small such as 4mm. The 4-material voxel model and 286-material voxel model with different mesh sizes of 16mm, 8mm, 4mm, are simulated respectively by MCNP Monte Carlo code. The results indicate that the 4-material voxel model can reach good accuracy. Using this method, multi-voxels are produced and simulated. Compared to the 4mm single voxel model, the multi-voxel model has good accuracy and less computational time. Finally, we recommend multi-voxel models and a reasonable number of meshes. Its computational time and accuracy have accessed the clinical BNCT requirement.

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