Development of Chinese adult male mathematical phantom and external radiation dose calculations

Sun Wenjuan; Xie Tianwu; Han Dao; Liu Qian

doi:10.3788/HPLPB20132501.0182

Volume 25 Issue 01

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(01): 182-188

Wu Zhaoyang, Chen Zhigang, Xue Changjiang, et al. Experimental research on GaAs photoconductive semiconductor switches triggered by laser diode[J]. High Power Laser and Particle Beams, 2012, 24: 635-638. doi: 10.3788/HPLPB20122403.0635

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Sun Wenjuan, Xie Tianwu, Han Dao, et al. Development of Chinese adult male mathematical phantom and external radiation dose calculations[J]. High Power Laser and Particle Beams, 2013, 25: 182-188. doi: 10.3788/HPLPB20132501.0182

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Development of Chinese adult male mathematical phantom and external radiation dose calculations

doi: 10.3788/HPLPB20132501.0182

1.
Britton Chance Center for Biomedical Photonics,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China

Received Date: 2012-06-26
Rev Recd Date: 2012-10-11
Publish Date: 2013-01-15

Abstract

Abstract

A new mathematical phantom, the Chinese MIRD (CMIRD), was developed based on the high-resolution data set of Visible Chinese Human (VCH). The position and size of organs were obtained from the voxel-based VCH model, using the minimal 3D bounding box method. According to the equations of the ORNL adult phantom, the original CMIRD based on that anatomic information was constructed and the method of proportional deformation was adopted in order to compare the external radiation dose of different height models for different radiation directions and particles with MCNPX. The stimulation results obtained from CMIRD present comparable to those published dose values. The analysis of the discrepancies indicates that the shape, location and mass of organs have great influence on radiation dose especially at low energies. The comparison of the effective doses for models with different size shows that the size of the model is important, and the smaller models receive larger doses. Also, the deeper organs present more sensitive to the organ size than the shallower ones. In addition, the mathematical model is superior in speed of the radiation dose calculation, which requires simpler definition and less memory space.
- digital human,
- mathematical model,
- Monte Carlo method,
- dose calculation

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