Enhancements in laser-wakefield acceleration using cluster-gas targets

Zsolt Lécz; Alexander Andreev; Nasr Hafz

doi:10.1117/12.2592307

18 April 2021 Enhancements in laser-wakefield acceleration using cluster-gas targets

Zsolt Lécz, Alexander Andreev, Nasr Hafz

Proceedings Volume 11778, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources IV; 1177805 (2021) https://doi.org/10.1117/12.2592307
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

The photon yield obtained during the betatron motion of electrons in the ion cavity is proportional to the number of such oscillations (or wiggling). In the case of high repetition rate laser systems the pulse energy is very limited, thus the laser pulse has to be tightly focused in order to achieve high peak intensity in the focus. In this way narrow gas jets are used, which results in short acceleration length of electrons, thus in low number of betatron oscillations. In order to increase the number of x-ray photons a mixture of clusters and gas target can be used, where the space-charge of nano-meter size droplets forces the electrons to oscillate at much higher frequency leading to the emission of more photons. In this work we present the interaction of such cluster targets with linearly polarized laser pulses and describe some possible positive effects when circular polarization is used.

Conference Presentation

Citation Download Citation

Zsolt Lécz, Alexander Andreev, and Nasr Hafz "Enhancements in laser-wakefield acceleration using cluster-gas targets", Proc. SPIE 11778, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources IV, 1177805 (18 April 2021); https://doi.org/10.1117/12.2592307

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