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25 May 2011 Generation of energetic protons from GeV to TeV
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The theoretical research works on proton and ion acceleration done by our group are reviewed. A complex target consisting of a front horizontal slice adjoining a conventional heavy ion and proton double-layer slab are used to produce more-fast moving hot electrons to enhance the target-normal sheath acceleration (TNSA) so that the protons in the proton layer can be accelerated to energies more than three times, and the energy spread halved, that from the simple double-layer slab. A sandwich target design with a thin compound ion layer between two light-ion layers and a micro-structured target design are proposed for obtaining efficiently monoenergetic heavy-ion beams. Radiation pressure acceleration from multi stage shock acceleration to continuous light sail acceleration for ultra-thin foils is used to generate GeV protons. The foil thickness for light pressure acceleration is studied. Quasi-single-cycle relativistic laser pulse is generated with an accelerated flying foil. In order to accelerate protons to higher energy up to TeV, wake acceleration is proposed. Mixed plasma is used to enhance the wake and radiation pressure acceleration is used to help protons to be easily trapped in the wake.
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Baifei Shen and Xiaomei Zhang "Generation of energetic protons from GeV to TeV", Proc. SPIE 8079, Laser Acceleration of Electrons, Protons, and Ions; and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles, 807911 (25 May 2011);

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