Sub-millisecond 4D X-ray tomography achieved with a multibeam X-ray imaging system
Xiaoyu Liang, Wolfgang Voegeli, Hiroyuki Kudo, E. T. Arakawa, Tetsuroh Shirasawa, Kentaro Kajiwara, T. Abukawa, Wataru Yashiro
Abstract
Abstract A proof-of-concept experiment for sub-millisecond temporal and 10 μ m order spatial resolution 4D X-ray tomography imaging using a multibeam X-ray imaging system is reported. The 3D structure of a tungsten wire during mechanical deformation was reconstructed using a super-compressed sensing-based algorithm from 28 projection images acquired simultaneously with a temporal resolution of 0.5 ms. The multibeam imaging system does not require rotation of the sample, X-ray source or detector. The experiment demonstrates the potential for improving the time resolution in observing non-repeatable dynamic phenomena, such as those occurring in fluids, living beings, or material fractures.