| 2017 №03 (05) |
DOI of Article 10.15407/tdnk2017.03.06 |
2017 №03 (07) |
Technical Diagnostics and Non-Destructive Testing, №3, 2017 pp. 49-55
Digital radiography with use of composite screens for non-destructive testing in industry and medicine
E. F. Voronkin1, R. O. Pastovensky2
1Institute of Scintillation Materials, STC «Institute of Monocrystals», NAS of Ukraine, 60, Nauky ave., 61001, Kharkov, Ukraine Е-mail: voronkin@isma.kharkov.ua
2E.O.Paton Electric Welding Institute of the NAS of Ukraine, 11 Kazimir Malevich str., 03150, Ukraine. E-mail: office@paton.kiev.ua
The possibility of using dispersed scintillators of a large area for flaw detection of metal products instead of an X-ray film based on scintillation screens ZnSe:Al, characterized by a maximum of luminescence in the area of photoabsorption of zinc selenide, is shown. The experimental data on the dependence of X-ray absorption by specimens using scintillation screens based on the chalcogenide scintillator of zinc selenide and ERS-S-2A on the thickness of a specimen at accelerating voltage are presented. The prospects of applying composite screens of zinc selenide during visualization of biological objects is shown, which indicates the possibility of using these screens in tomographic medical systems. 12 – Ref., 3 – Tab., 7 – Fig.
Keywords: non-destructive testing, scintillation screens, flaw detection
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