Mesh-type reference Korean phantoms (MRKPs) for adult male and female for use in radiation protection dosimetry.

Mesh-type reference Korean phantoms (MRKPs) for adult male and female for use in radiation protection dosimetry. Phys Med Biol. 2019 Feb 28;: Authors: Choi C, Nguyen TT, Yeom YS, Lee H, Han H, Shin B, Zhang X, Kim CH, Chung BS Abstract In the present study, to overcome the limitations of the previous voxel-type reference computational phantoms, a pair of new reference Korean phantoms, called mesh-type reference Korean phantoms (MRKPs), were developed for the adult male and female in a high-quality/fidelity mesh format. The developed phantoms include all target and source regions required for effective dose calculation, even micrometer-scale target and source regions of the respiratory and alimentary tract organs, skin, urinary bladder, and eye lens. The developed phantoms, which are in the mesh format, can be directly used in Monte Carlo codes without voxelization. The geometrical representation of the organs/tissues in the developed phantoms was investigated by calculating the organ-depth distributions (ODDs) and chord-length distributions (CLDs). In order to understand the dosimetric impact of the new phantoms, the dose coefficients (= fluence-to-effective dose conversion coefficients) for some external exposures of photons and electrons were calculated and compared with those of the previous voxel-type reference Korean phantoms. The results demonstrate that the effective dose coefficients of the MRKPs were generally similar to tho...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research