Tomographic energy-dispersive diffraction imaging

Beale AM, Jacques SDM, Bergwerff JA, Barnes P, Weckhuysen BM. Tomographic energy dispersive diffraction imaging as a tool to profile in three dimensions the distribution and composition of metal oxide species in catalyst bodies. Angew Chem Int Ed. 2007 46 8832. 

IR microspectroscopy [12], and UV-Vis-NIR DR microspectroscopy [9,12-15] as invasive techniques and tomographic energy-dispersive diffraction imaging (TEDDI) [16] and magnetic resonance imaging (MRI) [17-25] as noninvasive techniques. In what follows, we will discuss the application of these methods for catalyst preparation studies, illustrating their possibilities and limitations. 

TEDDI tomographic energy-dispersive diffraction imaging... 

Fig. 4. Direct tomographic, energy-dispersive X-ray diffraction imaging system. Suitcase enters device at left of Figure where spatial landmarks for registration purposes are measured by pre-scanner. In main housing centre-right of Figure, a primary cone-beam executes a meander scan, either of a region-of-interest or suitcase in its entirety. Illustration courtesy of GE Security, Germany.

Fig. 17. Two-dimensional generic cross-section for energy-dispersive direct tomographic X-ray diffraction imaging.

G Harding (2005) The design of direct tomographic, energy-dispersive x-ray diffraction imaging (XDI) systems. SPIE 59230R. 

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