From Event: SPIE Optics + Optoelectronics, 2019
We review the results obtained with the INRS laser system on the scaling of X-ray sources based on laser wake-field acceleration (LWFA) of electrons. We have successfully generated stable propagation in gas jets of a relativistic pulse through self-guiding on length well larger than the classical LWFA dephasing and depletion lengths, generating very intense beams of hard X-rays with 200TW on target. Our experimental scaling law obtained for the photon yield is presented and the level of X-ray emission in a 30keV-40keV band at the 1PW laser peak power level, now available at several laser facilities, is estimated.
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S. Fourmaux, J. C. Kieffer, and E. Hallin, "Scaling LWFA-based betatron emission to the 1PW level," Proc. SPIE 11036, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III, 110360D (Presented at SPIE Optics + Optoelectronics: April 04, 2019; Published: 24 April 2019); https://doi.org/10.1117/12.2523395.