Divergence angle consideration in energy spread measurement for high-quality relativistic electron beam in laser wakefield acceleration
Guang-Wei 光伟 Lu 卢,
Yao-Jun 曜均 Li 李,
Xi-Chen 曦辰 Hu 胡
et al.
Abstract:The thorough exploration of the transverse quality represented by divergence angle has been lacking yet in the energy spread measurement of the relativistic electron beam for laser wakefield acceleration (LWFA). In this paper, we address this gap by numerical simulations based on the experimental data. It suggests that in a C-shape magnet magnetic field with the beam focusing effect, considering the divergence angle would result in an increase in the full width at half maxima (FWHM) of the electron density dis… Show more
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