Efficient quasi-monoenergetic ion beams from laser-driven relativistic plasmas

Sasi Palaniyappan (), Chengkun Huang (), Donald C. Gautier, Christopher E. Hamilton, Miguel A. Santiago, Christian Kreuzer, Adam B. Sefkow, Rahul C. Shah and Juan C. Fernández
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Sasi Palaniyappan: Los Alamos National Laboratory
Chengkun Huang: Los Alamos National Laboratory
Donald C. Gautier: Los Alamos National Laboratory
Christopher E. Hamilton: Los Alamos National Laboratory
Miguel A. Santiago: Los Alamos National Laboratory
Christian Kreuzer: Ludwig-Maximilian-University
Adam B. Sefkow: Sandia National Laboratory
Rahul C. Shah: Los Alamos National Laboratory
Juan C. Fernández: Los Alamos National Laboratory

Nature Communications, 2015, vol. 6, issue 1, 1-12

Abstract: Abstract Table-top laser–plasma ion accelerators have many exciting applications, many of which require ion beams with simultaneous narrow energy spread and high conversion efficiency. However, achieving these requirements has been elusive. Here we report the experimental demonstration of laser-driven ion beams with narrow energy spread and energies up to 18 MeV per nucleon and ∼5% conversion efficiency (that is 4 J out of 80-J laser). Using computer simulations we identify a self-organizing scheme that reduces the ion energy spread after the laser exits the plasma through persisting self-generated plasma electric (∼1012 V m−1) and magnetic (∼104 T) fields. These results contribute to the development of next generation compact accelerators suitable for many applications such as isochoric heating for ion-fast ignition and producing warm dense matter for basic science.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms10170

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DOI: 10.1038/ncomms10170

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