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Modelling of laser-plasma electron acceleration in capillary tubes

H E Ferrari, A F Lifschitz, B Cros2011年Plasma Physics and Controlled FusionIF 2.2出版社

Modelling of electron acceleration driven by laser wakefield in centimetre-long capillary tubes was performed and compared with experimental results. Simulations using the WAKE code (Mora and Antonsen 1997 Phys. Plasma4 217) were compared with the results of the 3D particle-in-cell CALDER-CIRC code (Lifschitz et al 2009 J. Comput. Phys.228 1803). The results give some insight into the role of guiding to achieve electron energies of the order of 250 MeV with modest input laser intensities (∼0.77 × 1018 W cm−2) and low plasma densities (n = 5 × 1018 cm−3).

日本語訳

センチメートル長のキャピラリーチューブ内でのレーザー航跡場駆動による電子加速のモデリングを実施し、実験結果と比較した。WAKEコード(Mora and Antonsen 1997 Phys. Plasma 4 217)を用いたシミュレーションを、3次元粒子インセル法によるCALDER-CIRCコード(Lifshitz et al 2009 J. Comput. Phys. 228 1803)の結果と比較した。その結果は、適度なレーザー強度(∼0.77 × 10^18 W cm^−2)と低いプラズマ密度(n = 5 × 10^18 cm^−3)において、約250 MeVの電子エネルギーを達成するための導波の役割についての知見を与えるものである。

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