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Spectral and spatial characterisation of laser-driven positron beams

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  • G. Sarri
  • J. Warwick
  • W. Schumaker
  • K. Poder
  • J. Cole
  • D. Doria
  • T. Dzelzainis
  • K. Krushelnick
  • S. Kuschel
  • S. P. D. Mangles
  • Z. Najmudin
  • L. Romagnani
  • G. M. Samarin
  • D. Symes
  • A. G. R. Thomas
  • M. Yeung
  • M. Zepf
Article number014015
<mark>Journal publication date</mark>01/2017
<mark>Journal</mark>Plasma Physics and Controlled Fusion
Issue number1
Number of pages7
Publication StatusPublished
Early online date18/10/16
<mark>Original language</mark>English


The generation of high-quality relativistic positron beams is a central area of research in experimental physics, due to their potential relevance in a wide range of scientific and engineering areas, ranging from fundamental science to practical applications. There is now growing interest in developing hybrid machines that will combine plasma-based acceleration techniques with more conventional radio-frequency accelerators, in order to minimise the size and cost of these machines. Here we report on recent experiments on laser-driven generation of high-quality positron beams using a relatively low energy and potentially table-top laser system. The results obtained indicate that current technology allows to create, in a compact setup, positron beams suitable for injection in radio-frequency accelerators.