2026-10-12T19:22:36Z https://www.scidb.cn/oai

10.57760/sciencedb.35709 2026-03-26T17:37:37Z

2026-03-26 Multi-pulse and multi-angle ultrafast X-ray imaging driven by petawatt-class ultrafast laser pulses doi:10.57760/sciencedb.35709 en The study of matter under extreme conditions, particularly non-repeatable ultrafast processes such as those in high energy-density physics and inertial confinement fusion, urgently demands innovations in ultrafast imaging diagnostics. To address this, we propose a novel multi-pulse, multi-angle imaging scheme that leverages a beam-splitting design applied to a single ultra-intense laser pulse to generate multiple, precisely delayed sub-pulse beams. This method not only achieves a tunable temporal resolution range from femtosecond to picosecond and spatial resolution in micrometer scale, providing a powerful tool for capturing single-shot ultrafast dynamics, but also overcomes the low repetition rate limitation in all petawatt-class laser facilities, enabling previously unattainable continuous dynamic imaging. Experimental validation is scheduled on the 1 PW/0.1 Hz laser system at the Shanghai Superintense Ultrafast Laser Facility. Feasibility of the source is verified by PIC simulations, while Geant4 simulations demonstrate imaging performance. betatron radiation; laser wakefield accelerator; SULF-1 PW laser; ultrafast imaging Hong Zhang Hang Guo Hao Wang Jia Wang Gaojie Zeng Kangnan Jiang Song Li Ke Feng Wentao Wang Xinglong Xie Liming Chen Yuchi Wu Yuxin Leng Ruxin LI RESTRICTED dataset http://www.doi.org/10.1017/hpl.2026.10149 Science Data Bank