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Scintillator-photodiode type detectors for multi-energy scanning introscopy | | V.D. Ryzhikov
; S.V. Naydenov
; D.N. Kozin
; E.K. Lisetskaya
; A.D. Opolonin
; V.M. Svishch
; T.V. Kulik
; | | Date: |
23 Jul 2002 | | Subject: | Instrumentation and Detectors; General Physics; Physics and Society | physics.ins-det hep-ex physics.gen-ph physics.soc-ph | | Abstract: | 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. | | Source: | arXiv, physics/0207089 | | Services: | Forum | Review | PDF | Favorites | |
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