| Popis: |
X-ray computed tomography (CT) has become an established technique in the biomedical imaging or materials science research. Its ability to non-destructively provide high-resolution images of samples makes it attractive for diverse fields of research especially the paleontology. Exceptionally , the Precambrian is a geological time of rocks deposition containing several fossilized early animals, which still need to be investigated in order to predict the origin and evolution of early life. Corumbella werner i is one of those fossils skeletonized in Corumb (Brazil). Here, we present a study on selected specimens of Corumbella werneri using absorption -based contrast imaging at diverse tomographic setups. We investigated the potential of conventional laboratory -based device and synchrotron radiation sources to visualize internal structures of the fossils. The obtained results are discussed as well as the encountered limitations of those setups. Keywords: Imaging, X-ray micro -tomography , synchrotron radiation sources , fossils, paleontology, Corumbella werneri, precambria n. |
