Non-destructive tomographic energy-dispersive diffraction imaging of the interior of bulk concrete
2000; Elsevier BV; Volume: 30; Issue: 3 Linguagem: Inglês
10.1016/s0008-8846(00)00206-4
ISSN1873-3948
AutoresChristopher Hall, Sally L. Colston, Andrew C. Jupe, Simon D. M. Jacques, Richard A. Livingston, Alsaid O.A Ramadan, Amde W Amde, P. Barnes,
Tópico(s)Rock Mechanics and Modeling
ResumoA new tomographic technique, termed TEDDI (tomographic energy-dispersive diffraction imaging) has recently been invented by Hall et al. [C. Hall, P.Barnes, J.K. Cockcroft, S.L. Colston, D. Hausermann, S.D.M. Jacques, A.C. Jupe, M. Kunz, Synchrotron radiation energy-dispersive diffraction tomography, Nucl Instrum Methods Res, Sect B 140 (1998) 253–257; C. Hall, P. Barnes, J.K. Cockcroft, S.D.M. Jacques, A.C. Jupe, X. Turrillas, M. Hanfland, D. Hausermann, Rapid whole-rock mineral analysis and composition mapping by synchrotron X-ray diffraction, Anal Commun 33 (1996) 245–248] and applied to cementitious systems. TEDDI has notable unique features in that: it exploits diffraction, rather than spectroscopic sensing, and therefore directly yields compositional/structural information about the sample; the diffracting region can be made small or large depending on application, the ultimate spatial resolution being in the micron range; with the use of energetic (20–125 keV) synchrotron beams, bulk objects such as concrete blocks can be penetrated so that the technique becomes non-destructive.
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