Monte Carlo Simulation and Collimator Optimization for Tomographic Gamma Scanning

被引：0
|
作者：
Zhang, Jinzhao [1 ]
Tuo, Xianguo [2 ,3 ]
Wang, Qibiao [2 ,3 ]
Leng, Yangchun [2 ,3 ]
Shi, Rui [2 ,3 ]
机构：
[1] Natl Ocean Technol Ctr, Tianjin, Peoples R China
[2] Chengdu Univ Technol, Coll Nucl Technol & Automat Engn, Chengdu, Sichuan, Peoples R China
[3] Sichuan Univ Sci & Engn, Coll Chem & Environm Engn, Zigong, Peoples R China
来源：
2017 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC) | 2017年
关键词：
WASTE DRUMS; ASSAY;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present the design and optimization of a Tomographic Gamma Scanning (TGS) collimator using Monte Carlo methods. In these simulations, an accurate TGS model was built and the radius, depth and shape of the TGS collimator were optimized. The simulation results reveal that the optimal collimator aperture radius and depth for this system are 3.1 cm and 18.6 cm, respectively, achieved when the full width at half maximum (FWHM) is 26.7 cm. Also, a rotated 30 hexagon is found to be the optimal shape. Our TGS design shows significantly improved performance.
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页数：5
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