• Open Access

Tunable Mega-Ampere Electron Current Propagation in Solids by Dynamic Control of Lattice Melt

D. A. MacLellan, D. C. Carroll, R. J. Gray, N. Booth, M. Burza, M. P. Desjarlais, F. Du, D. Neely, H. W. Powell, A. P. L. Robinson, G. G. Scott, X. H. Yuan, C.-G. Wahlström, and P. McKenna
Phys. Rev. Lett. 113, 185001 – Published 31 October 2014

Abstract

The influence of lattice-melt-induced resistivity gradients on the transport of mega-ampere currents of fast electrons in solids is investigated numerically and experimentally using laser-accelerated protons to induce isochoric heating. Tailoring the heating profile enables the resistive magnetic fields which strongly influence the current propagation to be manipulated. This tunable laser-driven process enables important fast electron beam properties, including the beam divergence, profile, and symmetry to be actively tailored, and without recourse to complex target manufacture.

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  • Received 23 June 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.185001

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Authors & Affiliations

D. A. MacLellan1, D. C. Carroll1, R. J. Gray1, N. Booth2, M. Burza3, M. P. Desjarlais4, F. Du5, D. Neely2, H. W. Powell1, A. P. L. Robinson2, G. G. Scott1,2, X. H. Yuan6, C.-G. Wahlström3, and P. McKenna1,*

  • 1SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom
  • 2Central Laser Facility, STFC Rutherford Appleton Laboratory, Oxfordshire OX11 0QX, United Kingdom
  • 3Department of Physics, Lund University, P.O. Box 118, S-22100 Lund, Sweden
  • 4Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA
  • 5Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 6Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China

  • *paul.mckenna@strath.ac.uk

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Vol. 113, Iss. 18 — 31 October 2014

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