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McKeever K, Makita M, Nersisyan G, et al. Fast-electron refluxing effects on anisotropic hard-x-ray emission from intense laser-plasma interactions. Phys Rev E Stat Nonlin Soft Matter Phys. 2015;91(3):033107doi: 10.1103/PhysRevE.91.033107.
McKeever, K., Makita, M., Nersisyan, G., Dzelzainis, T., White, S., Kettle, B., Dromey, B., Zepf, M., Sarri, G., Doria, D., Ahmed, H., Lewis, C. L., Riley, D., & Robinson, A. P. (2015). Fast-electron refluxing effects on anisotropic hard-x-ray emission from intense laser-plasma interactions. Physical review. E, Statistical, nonlinear, and soft matter physics, 91(3), 033107. https://doi.org/10.1103/PhysRevE.91.033107
McKeever, K, et al. "Fast-electron refluxing effects on anisotropic hard-x-ray emission from intense laser-plasma interactions." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 91,3 (2015): 033107. doi: https://doi.org/10.1103/PhysRevE.91.033107
McKeever K, Makita M, Nersisyan G, Dzelzainis T, White S, Kettle B, Dromey B, Zepf M, Sarri G, Doria D, Ahmed H, Lewis CL, Riley D, Robinson AP. Fast-electron refluxing effects on anisotropic hard-x-ray emission from intense laser-plasma interactions. Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Mar;91(3):033107. doi: 10.1103/PhysRevE.91.033107. Epub 2015 Mar 16. PMID: 25871224.
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Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Mar;91(3):033107. doi: 10.1103/PhysRevE.91.033107. Epub 2015 Mar 16.

Fast-electron refluxing effects on anisotropic hard-x-ray emission from intense laser-plasma interactions.

Physical review. E, Statistical, nonlinear, and soft matter physics

K McKeever, M Makita, G Nersisyan, T Dzelzainis, S White, B Kettle, B Dromey, M Zepf, G Sarri, D Doria, H Ahmed, C L S Lewis, D Riley, A P L Robinson

Affiliations

  1. Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, University Road, Belfast BT7 1NN, United Kingdom.
  2. Central Laser Facility, Rutherford-Appleton Laboratory, Chilton, Didcot OX11 OQX, United Kingdom.

PMID: 25871224 DOI: 10.1103/PhysRevE.91.033107

Abstract

Fast-electron generation and dynamics, including electron refluxing, is at the core of understanding high-intensity laser-plasma interactions. This field is itself of strong relevance to fast ignition fusion and the development of new short-pulse, intense, x-ray, γ-ray, and particle sources. In this paper, we describe experiments that explicitly link fast-electron refluxing and anisotropy in hard-x-ray emission. We find the anisotropy in x-ray emission to be strongly correlated to the suppression of refluxing. In contrast to some previous work, the peak of emission is directly along the rear normal to the target rather than along either the incident laser direction or the specular reflection direction.

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