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.
@article{arxiv.physics/0207089,
title = {Scintillator-photodiode type detectors for multi-energy scanning introscopy},
author = {V. D. Ryzhikov and S. V. Naydenov and D. N. Kozin and E. K. Lisetskaya and A. D. Opolonin and V. M. Svishch and T. V. Kulik},
journal= {arXiv preprint arXiv:physics/0207089},
year = {2007}
}
Comments
LaTeX2e, 10 pages, 8 eps figures, presented at the 8th ECNDT (Barcelona, Spain, June 17-21, 2002)