Positron generation via ultra-intense laser irradiating a tapered hollow foam-like target
The 9th International Symposium on Ultrafast Phenomena and Terahertz Waves (2018), paper TuK10（2018）
摘要
An improved scheme for high-flux, low-divergence and high-energy positrons generation is proposed. With a thick extra layer in the front and a large opening radius hollow cone, positron generation is enhanced, and the beam collimation and energy are well kept.
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