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Title: A compact broadband ion beam focusing device based on laser-driven megagauss thermoelectric magnetic fields

Ultra-intense lasers can nowadays routinely accelerate kiloampere ion beams. These unique sources of particle beams could impact many societal (e.g., proton-therapy or fuel recycling) and fundamental (e.g., neutron probing) domains. However, this requires overcoming the beam angular divergence at the source. This has been attempted, either with large-scale conventional setups or with compact plasma techniques that however have the restriction of short (<1 mm) focusing distances or a chromatic behavior. Here, we show that exploiting laser-triggered, long-lasting (>50 ps), thermoelectric multi-megagauss surface magnetic (B)-fields, compact capturing, and focusing of a diverging laser-driven multi-MeV ion beam can be achieved over a wide range of ion energies in the limit of a 5° acceptance angle.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ; ;  [6] ; ; ; ;  [1] ; ; ;  [7] ; ; ;  [8] ; ; ; more »;  [4] ;  [1] ;  [5] ;  [9] ; « less
  1. LULI, École Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau (France)
  2. (Canada)
  3. (Japan)
  4. CELIA, Universite de Bordeaux, Talence 33405 (France)
  5. (United States)
  6. Dipartimento SBAI, Universita di Roma “La Sapienza,” Via A. Scarpa 16, 00161 Roma (Italy)
  7. Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität, Düsseldorf D-40225 (Germany)
  8. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
  9. Department of Physics, University of Nevada, Reno, Nevada 89557 (United States)
Publication Date:
OSTI Identifier:
22392454
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; FOCUSING; ION BEAMS; LASERS; MAGNETIC FIELDS; NEUTRON PROBES; PARTICLE BEAMS; PROTONS; THERAPY