A compact broadband ion beam focusing device based on laser-driven megagauss thermoelectric magnetic fields
- CELIA, Universite de Bordeaux, Talence 33405 (France)
- Dipartimento SBAI, Universita di Roma “La Sapienza,” Via A. Scarpa 16, 00161 Roma (Italy)
- Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität, Düsseldorf D-40225 (Germany)
- Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
- LULI, École Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau (France)
- Department of Physics, University of Nevada, Reno, Nevada 89557 (United States)
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.
- OSTI ID:
- 22392454
- Journal Information:
- Review of Scientific Instruments, Vol. 86, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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