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Title: Generation of high-energy mono-energetic heavy ion beams by radiation pressure acceleration of ultra-intense laser pulses

Generation of high-energy mono-energetic heavy ion beams by radiation pressure acceleration (RPA) of intense laser pulses is investigated. Different from previously studied RPA of protons or light ions, the dynamic ionization of high-Z atoms can stabilize the heavy ion acceleration. A self-organized, stable RPA scheme specifically for heavy ion beams is proposed, where the laser peak intensity is required to match with the large ionization energy gap when the successive ionization state passes the noble gas configurations [such as removing an electron from the helium-like charge state (Z−2){sup +} to (Z−1){sup +}]. Two-dimensional particle-in-cell simulations show that a mono-energetic Al{sup 13+} beam with peak energy 1.0 GeV and energy spread of only 5% can be obtained at intensity of 7×10{sup 20} W/cm{sup 2} through the proposed scheme. A heavier, mono-energetic, ion beam (Fe{sup 26+}) can attain a peak energy of 17 GeV by increasing the intensity to 10{sup 22} W/cm{sup 2}.
Authors:
;  [1] ;  [2] ; ;  [1] ;  [3]
  1. Center for Energy Research, University of California, San Diego, California 92093 (United States)
  2. (China)
  3. School of Physics, Peking University, Beijing 100871 (China)
Publication Date:
OSTI Identifier:
22407940
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; CHARGE STATES; COMPUTERIZED SIMULATION; ENERGY GAP; GEV RANGE; HEAVY IONS; HELIUM; ION BEAMS; IONIZATION; LASER RADIATION; LIGHT IONS; PROTONS; RADIATION PRESSURE; TAIL IONS; TWO-DIMENSIONAL CALCULATIONS