| Influence of coded mask rotation speed and central detector to imaging performance for time-encoded imager | |
Zhao, Dong1; Jia, Wenbao1,3; Hei, DQ(黑大千)2,3 ; Liang, Xuwen1; Cheng, Wei1; Cai, Pingkun1; Zhang, Ronghua1; Shan, Qing1,3; Ling, Yongsheng1,3 | |
| 2023-08-01 | |
| Source Publication | RADIATION PHYSICS AND CHEMISTRY Impact Factor & Quartile |
| ISSN | 0969-806X |
| Volume | 209 |
| Abstract | Time-encoded imaging could be useful for searching potential radioactive sources for preventing illicit transportation and trafficking of nuclear materials. A 2-D, dual-particle, time-encoded imager was developed for gamma-ray and neutron source imaging. The influence of central detector and coded mask rotation speed to imaging performance, such as angular resolution, signal-to-noise ratio and detection time, was investigated by Am–Be neutron source imaging experiments. The EJ276 plastic scintillator (Size: Φ5.08 cm × 5.08 cm) and CLYC scintillator (Size: Φ2.54 cm × 2.54 cm) couple to photomultiplier tubes was set as the central detector, respectively. Under the experiment conditions (Am–Be neutron source; 300 mCi; 1.8 m), for the neutron and gamma-ray images with EJ276 detector, the best horizontal and vertical angular resolution was (3.7°, 4.8°) and (5.9°, 6.6°), minimum detection time was 100 s and 600 s, respectively; for the neutron and gamma-ray images with CLYC detector, the best horizontal, vertical angular resolution was (3.1°, 3.1°) and (3.5°, 3.3°), minimum detection time was 2200 s and 1600 s, respectively. For different central detector, the results showed that the smaller volume of detector, the better angular resolution; the lower detection efficiency, the longer detection time. For different rotation speed, too fast rotation speed can lead to failure to locate the source. © 2023 Elsevier Ltd |
| Keyword | Ductile fracture Materials handling Neutron sources Neutrons Photomultipliers Radioactive materials Radioactivity Rotation Scintillation counters Am-Be neutron source Angular resolution Coded masks Detection time Dual-particle imaging Imaging performance Particle imaging Rotation speed Source imaging Time-encoded imager |
| Publisher | Elsevier Ltd |
| DOI | 10.1016/j.radphyschem.2023.110964 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20231713952586 |
| EI Keywords | Gamma rays |
| EI Classification Number | 622 Radioactive Materials ; 622.1 Radioactive Materials, General ; 714.1 Electron Tubes ; 931.1 Mechanics ; 931.3 Atomic and Molecular Physics ; 932.1 High Energy Physics ; 944.7 Radiation Measuring Instruments |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/500929 |
| Collection | 核科学与技术学院 |
| Corresponding Author | Jia, Wenbao; Hei, Daqian |
| Affiliation | 1.Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing; 211106, China; 2.School of Nuclear Science and Technology, Lanzhou University, Lanzhou; 730000, China; 3.Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou; 215000, China |
| Corresponding Author Affilication | School of Nuclear Science and Technology |
| Recommended Citation GB/T 7714 | Zhao, Dong,Jia, Wenbao,Hei, Daqian,et al. Influence of coded mask rotation speed and central detector to imaging performance for time-encoded imager[J]. RADIATION PHYSICS AND CHEMISTRY,2023,209. |
| APA | Zhao, Dong.,Jia, Wenbao.,Hei, Daqian.,Liang, Xuwen.,Cheng, Wei.,...&Ling, Yongsheng.(2023).Influence of coded mask rotation speed and central detector to imaging performance for time-encoded imager.RADIATION PHYSICS AND CHEMISTRY,209. |
| MLA | Zhao, Dong,et al."Influence of coded mask rotation speed and central detector to imaging performance for time-encoded imager".RADIATION PHYSICS AND CHEMISTRY 209(2023). |
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