The research group of Professor Qiao Bin of the School of Physics and collaborators proposed a new scheme for generating a quasi-mono-energetic ion beam driven by a powerful petawatt femtosecond laser

Professor Qiao Bin’s research group and collaborators from the School of Physics of Peking University and the State Key Laboratory of Nuclear Physics and Nuclear Technology proposed to irradiate a micro-tape target with a powerful femtosecond laser to obtain a peak energy higher than 100 MeV and an energy dissipation of 1%.

The high-power laser ion source has an accelerating electric field more than three orders of magnitude higher than the traditional radio frequency source.

Recently, the research group of Professor Qiao Bin from the School of Physics of Peking University and the State Key Laboratory of Nuclear Physics and Nuclear Technology and the research group of Professor Alexander Pukhov from the Institute of Theoretical Physics of the University of Düsseldorf, Germany, proposed to irradiate microstructures with high-powered femtosecond lasers.

(A) A schematic diagram of a new ion acceleration scheme for the interaction between a petawatt femtosecond laser and a micro-tape target; (b) 3D particle simulation results of proton density; (c) 3D particle simulation results of proton energy spectrum

Shen Xiaofei, a 2019 PhD graduate from the State Key Laboratory of Nuclear Physics and Nuclear Technology of Peking University and a postdoctoral fellow at the Institute of Theoretical Physics, University of Düsseldorf, is the first author of the paper, and Joe Bin and Alexander Pukhov are the co-corresponding authors