4 years ago

Collimated Ultra-Bright Gamma-Rays from a PW-Laser-Driven Wire Wiggler.

P. Gibbon, L.-M. Chen, W.-M. Wang, Y.-T. Li, J. Zhang, Z.-M. Sheng

It is shown by three-dimensional QED particle-in-cell simulation that as a laser pulse of 2.5 PW propagates along a sub-wavelength-wide solid wire, directional synchrotron $\gamma-$rays along the wire surface can be efficiently generated. With 8\% energy conversion from the pulse, the $\gamma-$rays contains $10^{12}$ photons between 5 and 500 MeV within 10-femtosecond duration, corresponding to peak brilliance of $10^{27}$ photons ${\rm s^{-1}~ mrad^{-2}~ mm^{-2}}$ per 0.1\% bandwidth. The brilliance and photon energy are respectively 5 orders and 3 orders of magnitude higher than those for a typical synchrotron radiation facility. The radiation is attributed to the generation of nC, GeV electron beams well guided along the wire surface and their wiggling motion in the strong electrostatic and magnetostatic fields induced at the high-density-wire surface, where QED effects become significant. This scheme works well with the laser power ranging from 0.5 PW to 5 PW available currently.

Publisher URL: http://arxiv.org/abs/1710.11356

DOI: arXiv:1710.11356v1

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.