Development of crystal optics for Multi-Projection X-ray Imaging for synchrotron and XFEL sources
Valerio Bellucci, Sarlota Birnsteinova, Tokushi Sato, Romain Letrun, Jayanath C. P. Koliyadu, Chan Kim, Gabriele Giovanetti, Carsten Deiter, Liubov Samoylova, I… 展开作者
Valerio Bellucci, Sarlota Birnsteinova, Tokushi Sato, Romain Letrun, Jayanath C. P. Koliyadu, Chan Kim, Gabriele Giovanetti, Carsten Deiter, Liubov Samoylova, Ilia Petrov, Luis Lopez Morillo, Rita Graceffa, Luigi Adriano, Helge Huelsen, Heiko Kollmann, Thu Nhi Tran Calliste, Dusan Korytar, Zdenko Zaprazny, Andrea Mazzolari, Marco Romagnoni, Eleni Myrto Asimakopoulou, Zisheng Yao, Yuhe Zhang, Jozef Ulicny, Alke Meents, Henry N. Chapman, Richard Bean, Adrian Mancuso, Pablo Villanueva-Perez, Patrik Vagovic
X-ray Multi-Projection Imaging (XMPI) is an emerging technology that allows for the acquisition of millions of 3D images per second in samples opaque to visible light. This breakthrough capability enables volumetric observation of fast stochastic phenomena, which were inaccessible due to the lack of a volumetric X-ray imaging probe with kHz to MHz repetition rate. These include phenomena of industrial and societal relevance such as fractures in solids, propagation of shock waves, laser-based 3D printing, or even fast processes in the biological domain. Indeed, the speed of traditional tomography is limited by the shear forces caused by rotation, to a maximum of 1000 Hz in state-of-the-art tomography. Moreover, the shear forces can disturb the phenomena in observation, in particular with soft samples or sensitive phenomena such as fluid dynamics. XMPI is based on splitting an X-ray beam to generate multiple simultaneous views of the sample, therefore eliminating the need for rotation. The achievable performances depend on the characteristics of the X-ray source, the detection system, and the X-ray optics used to generate the multiple views. The increase in power density of the X-ray sources around the world now enables 3D imaging with sampling speeds in the kilohertz range at synchrotrons and megahertz range at X-ray Free-Electron Lasers (XFELs). Fast detection systems are already available, and 2D MHz imaging was already demonstrated at synchrotron and XFEL. In this work, we explore the properties of X-ray splitter optics and XMPI schemes that are compatible with synchrotron insertion devices and XFEL X-ray beams. We describe two possible schemes designed to permit large samples and complex sample environments. Then, we present experimental proof of the feasibility of MHz-rate XMPI at the European XFEL.
Probing laser-driven surface and subsurface dynamics via grazing-incidence XFEL scattering and diffraction
European X-ray Free-Electron Laser Facility（欧洲X射线自由电子激光设施）；Department Physik, Universität Siegen（锡根大学物理系）；Helmholtz-Zentrum Dresden-Rossendorf（德累斯顿-罗斯多夫亥姆霍兹中心）；Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern–Landau（凯泽斯劳滕-兰道理科大学物理系及OPTIMAS研究中心）
