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

B. Albertazzi, E. d'Humières, L. Lancia, V. Dervieux, P. Antici, J. Böcker, J. Bonlie, J. Breil, B. Cauble, S. N. Chen, J. L. Feugeas, M. Nakatsutsumi, P. Nicolaï, L. Romagnani, R. Shepherd, Y. Sentoku, M. Swantusch, V. T. Tikhonchuk, M. Borghesi, O. WilliH. Pépin, J. Fuchs

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4 Citations (Scopus)
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Abstract

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.

Original languageEnglish
Article number043502
Number of pages6
JournalReview of Scientific Instruments
Volume86
Early online date13 Apr 2015
DOIs
Publication statusPublished - 2015

ASJC Scopus subject areas

  • Instrumentation

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