Non-destructive investigations of high-speed processes are often performed with flash x-ray technology. This results in two-dimensional projections or rather radiographs that in most cases provide only poor three-dimensional information. In many cases, however, this is essential including information on object masses. Therefore a novel method for measurement and three-dimensional reconstruction has been developed at the Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, and is referred to as High-Speed Tomography. With an upgrade of the measurement setup even the dynamics of these processes such as momentum or kinetic energy are derived. The measurement setup consists of few synchronized flash x-ray sources and different alternative detectors. Extreme fast processes can be observed without motion blur on the images as well as among the projections since exposure times are about 20 ns and the jitter is less than one μs. Possible spatial resolutions lie in the mm-range due to the focal spot of the anodes of the flash x-ray tubes that are used. The three dimensional reconstruction is performed with a novel in-house algorithm that has been considerably improved recently. It is implemented in a software package. The attainable spatial resolution follows that of the measurement. Possible applications are material testing especially regarding failure behaviour.
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