9 November 2016 Studies on high-quality electron beams and tunable x-ray sources produced by laser wakefield accelerators
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Abstract
The applications of laser wake field accelerators (LWFA) rely heavily on the quality of produced high energy electron beams and X-ray sources. We present our recent progress on this issue. Firstly we propose a bichromatic laser ionization injection scheme for obtaining high quality electron beams. With the laser pulse combinations of 800 nm and 267 nm, or 2400 nm and 800 nm in wavelengths, electron beams with energy spread of 1% or lower can be produced. Secondly we propose polarization tunable X-ray sources based on LWFA. By shooting a laser pulse into a preformed plasma channel with a skew angle referring to the channel axis, the plasma channel can act as a helical undulator for elliptically polarized X-rays.
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Ming Zeng, Ming Zeng, Ji Luo, Ji Luo, Min Chen, Min Chen, Zheng-Ming Sheng, Zheng-Ming Sheng, "Studies on high-quality electron beams and tunable x-ray sources produced by laser wakefield accelerators", Proc. SPIE 10016, High-Power Lasers and Applications VIII, 100160Y (9 November 2016); doi: 10.1117/12.2244959; https://doi.org/10.1117/12.2244959
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