Effects of buried high-Z layers on fast electron propagation

Xiaohu Yang*, Han Xu, Hongbin Zhuo, Yanyun Ma, Fuqiu Shao, Yan Yin, Marco Borghesi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
11 Downloads (Pure)

Abstract

By extending a prior model [A. R. Bell, J.R. Davies, S. M. Guerin, Phys. Rev. E 58, 2471 (1998)], the magnetic field generated during the transport of a fast electron beam driven by an ultraintense laser in a solid target is derived analytically and applied to estimate the effect of such field on fast electron propagation through a buried high-Z layer in a lower-Z target. It is found that the effect gets weaker with the increase of the depth of the buried layer, the divergence of the fast electrons, and the laser intensity, indicating that magnetic field effects on the fast electron divergence as measured from K-a X-ray emission may need to be considered for moderate laser intensities. On the basis of the calculations, some considerations are made on how one can mitigate the effect of the magnetic field generated at the interface.

Original languageEnglish
Article number30
Number of pages7
JournalThe European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
Volume68
Issue number2
DOIs
Publication statusPublished - 13 Feb 2014

Keywords

  • LASER-PLASMA INTERACTIONS
  • SHORT-PULSE
  • HOT-ELECTRONS
  • SOLID TARGETS
  • TRANSPORT
  • FIELD

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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