Development of Chinese hybrid radiation adult phantoms and their application to external dosimetry

• Published in: Science China. Technological sciences Vol. 57; no. 4; pp. 713 - 719
• Main Authors: Geng, ChangRan, Tang, XiaoBin, Hou, XiaoXiao, Shu, DiYun, Chen, Da
• Format: Journal Article
• Language: English
• Published: Heidelberg Science China Press 01.04.2014
• Subjects: Adults; Anatomy; China; Dosimeters; Dosimetry; Engineering; Mathematical analysis; Organs; Photons; 中国; 国际放射防护委员会; 幻影; 应用; 成年; 杂交; 照射剂量; 辐射; radiation computational phantoms; dosimetry; Monte Carlo calculations; CHRAP
• ISSN: 1674-7321; 1869-1900
• DOI: 10.1007/s11431-014-5480-x

This paper presents the construction of Chinese hybrid radiation adult phantoms, which are compatible with anatomical parameters for the Chinese reference population. The phantoms were designed using polygonal mesh surface, which makes the phantom more flexible and realistic than previous generations. Voxelization of hybrid phantoms was performed to adopt Mon- te Carlo methods. External dose coefficients were calculated by Geant4 and compared to the ICRP reference phantom. The re- sults show that the organ dose is different from ICRP116 with the low energy photons, which can be ascribed to the anatomy and topology difference of each organ. The effective dose of CHRAP is 19% higher than ICRP 116 in the energy range from 10 to 100 keV and is almost the same in the energy range from 100 keV to 10 MeV. These phantoms can be used as the basic phantom to adjust the posture or organ volume to estimate dosimetry in medical and space explorations.