Transverse characteristics of short-pulse laser-produced ion beams: a study of the acceleration dynamics.

Laboratoire pour l'Utilisation des Lasers Intenses (LULI) Unité Mixte n 7605 CNRS--CEA--Ecole Polytechnique--Université Pierre et Marie Curie, Palaiseau, France.
Physical Review Letters (Impact Factor: 7.94). 05/2006; 96(15):154801.
Source: PubMed

ABSTRACT We report on first measurements of the transverse characteristics of laser-produced energetic ion beams in direct comparison to results for laser accelerated proton beams. The experiments show the same low emittance for ion beams as already found for protons. Additionally, we demonstrate that the divergence is influenced by the charge over mass ratio of the accelerated species. From these observations we deduced scaling laws for the divergence of ions as well as the temporal evolution of the ion source size.

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