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Gamma-ray production from resonant betatron oscillations of accelerated electrons in a plasma wake

Cipiccia, Silvia and Islam, Mohammad and Ersfeld, Bernhard and Welsh, Gregor and Brunetti, Enrico and Vieux, Gregory and Yang, Xue and Wiggins, Samuel and Grant, Peter Anderson and Reboredo Gil, David and Grant, David William and Shanks, Richard and Issac, Riju and Anania, Maria Pia and Maneuski, Dzmitry and Montgomery, Rachel and Smith, Gary and Hoek, Matthias and Hamilton, David J. and Symes, Dan and Rajeev, Pattathil P. and O'Shea, V. and Dias, João M. and Lemos, Nuno R. C. and Jaroszynski, Dino (2015) Gamma-ray production from resonant betatron oscillations of accelerated electrons in a plasma wake. In: Proceedings of SPIE. SPIE--The International Society for Optical Engineering.. ISBN 9781628426336

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Abstract

The laser-plasma wakefield accelerator is a novel ultra-compact particle accelerator. A very intense laser pulse focused onto plasma can excites plasma density waves. Electrons surfing these waves can be accelerated to very high energies with unprecedented accelerating gradients in excess of 1 GV/cm. While accelerating, electrons undergo transverse betatron oscillations and emit synchrotron-like x-ray radiation into a narrow on-axis cone, which is enhanced when electrons interact with the electromagnetic field of the laser. In this case, the laser can resonantly drive the electron motion, lading to direct laser acceleration. This occurs when the betatron frequency matches the Doppler down-shifted frequency of the laser. As a consequence, the number of photons emitted is strongly enhanced and the critical photon energy is increases to 100’s of keV

Item type: Book Section
ID code: 54913
Notes: Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any materi al in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Keywords: electrons, particle accelerators, doppler effect , photons , lasers , plasmas , gamma radiation, radiation, synchrotrons, X-rays, Physics, Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Technology and Innovation Centre > Advanced Science and Technology
Depositing user: Pure Administrator
Date deposited: 11 Dec 2015 04:20
Last modified: 29 Jan 2019 18:24
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URI: https://strathprints.strath.ac.uk/id/eprint/54913
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