講演情報
[19p-A601-6]Sub-Millisecond 4D X-ray Tomography using a Multibeam X-ray Imaging System
〇Xiaoyu Liang1, Wolfgang Voegeli2, Hiroyuki Kudo3, Etsuo Arakawa2, Tetsuroh Shirasawa3,4, Kentaro Kajiwara5, Tadashi Abukawa1,6, Wataru Yashiro1,6,7 (1.IMRAM, Tohoku Univ., 2.Tokyo Gakugei Univ., 3.Univ. of Tsukuba, 4.AIST, 5.JASIR, 6.SRIS, Tohoku Univ., 7.Univ. of Tokyo)
キーワード：
X-ray tomography、Multi-beam CT、Time-resolved
This work presents a proof-of-concept experiment showcasing the capabilities of an improved multibeam X-ray imaging system for achieving sub-millisecond temporal and 10 μm-order spatial resolution in 4D X-ray tomography imaging. 28 incident X-ray beams in a wide angular range of around ±73° were created by the multibeam X-ray optics and captured simultaneously by lens-coupling detector systems with an exposure time of 0.5 ms. The 3D structure of a tungsten wire during mechanical deformation was reconstructed by employing a super-compressed sensing-based algorithm. The multibeam X-ray imaging system does not require rotation of the sample, X-ray source, or detector. The experiment demonstrates the potential for improving the temporal resolution in observing non-repeatable dynamic phenomena, such as those occurring in fluids, living beings, or material fractures.