Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

X/Gamma-ray emission from self-modulated wakefield accelerators

Sep 28, 2017, 6:45 PM
15m
SB1, Sala Bonaparte 1, HH

SB1, Sala Bonaparte 1, HH

talk WG4 - Applications of Compact and High-Gradient Accelerators WG4_Parallel

Speaker

Mr Nuno Candeias Lemos (Lawrence Livermore National Laboratory)

Description

An application of compact, high-gradient laser-wakefield accelerators is the development of novel light sources. They have potential for many applications, including high energy density sciences, where they can be used as probes to explore the physics of dense plasmas and warm dense matter. Our recent experimental and theoretical work shows that we can use three mechanisms to produce high energy x-rays and gamma-rays from a Self-Modulated Laser Wakefield Accelerator: Betatron motion of electrons, Bremsstrahlung and inverse Compton scattering. A series of experiments at the Lawrence Livermore National Laboratory, using the 1 ps 150 J Titan laser, have demonstrated low divergence electron beams with energies up to 300 MeV and 6 nCs of charge, and betatron x-rays with critical energies up to 20 keV. Additional experiments have also demonstrated that using Inverse Compton scattering and Bremsstrahlung we were able to generate gamma-rays with energies larger than 1MeV. Our results suggest that we will be able to develop SMLWFA-based light sources at large scale facilities for applications. This work was performed under the auspices of the U.S. Department of Energy by LLNL under Contract DE-AC52-07NA27344.

Primary author

Mr Nuno Candeias Lemos (Lawrence Livermore National Laboratory)

Co-authors

Mr Arthur Pak (Lawrence Livermore National Lab) Mr Avi Milder (Laboratory for Laser Energetics) Prof. Chandrashekhar Joshi (UCLA) Dr Felicie Albert (Lawrence Livermore National Laboratory) Dr Jessica Shaw (Laboratory for Laser Energetics) Mr Ken Marsh (UCLA) Mr Paul King (UT Austin)

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