2002/07/23 by V.D. Ryzhikov, V. D. Ryzhikov, S. V. Naydenov +13
Engineering · Medicine · Physics and Astronomy · #Advanced X-ray and CT Imaging #FOS: Physical sciences #General Physics (physics.gen-ph) #High Energy Physics - Experiment (hep-ex) #Instrumentation and Detectors (physics.ins-det) #Medical Imaging Techniques and Applications #Physics and Society (physics.soc-ph) #Radiation Dose and Imaging #hep-ex #physics.gen-ph #physics.ins-det #physics.soc-ph
paper · pdf · doi:10.48550/arxiv.physics/0207089
LaTeX2e, 10 pages, 8 eps figures, presented at the 8th ECNDT (Barcelona, Spain, June 17-21, 2002)
arxiv created 2002/07/23 · openalex publication_date 2002/07/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Results of experimental studies of detector arrays S-PD (scintillator-photodiode) and PRD (scintillator-photoreceiving device) used for X-ray digital radiography have shown that there exist further possibilities to increase spatial resolution of this system up to 2-3 line pairs per mm. Theoretical analysis and experimental studies show that the two-energy detection method not only allows one to detect organics on the background of metal, but also substantially increases (by 3-5 times) the detection ability of the system as a whole, especially if parameters of the S-PD pair are optimized, in particular, when ZnSe(Te) is used in the low-energy circuit. A possibility to distinguish, in principle, between substances with insignificant differences in atomic number has been theoretically proven -- by transition to multi-energy radiography. 3D-imaging has been realized using S-PD detector arrays.