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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

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Low-and medium-mass ion acceleration driven by petawatt laser plasma interactions

McKenna, P. and Lindau, F. and Lundh, O. and Carroll, D.C. and Clarke, R.J. and Ledingham, K.W.D. (2007) Low-and medium-mass ion acceleration driven by petawatt laser plasma interactions. Plasma Physics and Controlled Fusion, 49 (12B). B223-B231. ISSN 0741-3335

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Abstract

An experimental investigation of low- and medium-mass ion acceleration from resistively heated thin foil targets, irradiated by picosecond laser pulses at intensities up to 5 × 1020 W cm−2, is reported. It is found that the spectral distributions of ions, up to multi-MeV/nucleon energies, accelerated from the rear surface of the target are broadly consistent with previously reported measurements made at intensities up to 5 × 1019 W cm−2. Properties of the backward-directed beams of ions accelerated from the target front surface are also measured, and it is found that, compared with the rear surface, higher ion numbers and charges, and similar ion energies are produced. Additionally, the scaling of the maximum ion energy as a function of ion charge and laser intensity are measured and compared with the predictions of a numerical model.