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arXiv 1301.3044physics.plasm-ph
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高强度laser与气体团簇靶相互作用产生高电荷发散电子束

High-charge divergent electron beam generation from high-intensity laser interaction with a gas-cluster target

P. Koester, G. C. Bussolino, G. Cristoforetti, A. Faenov, A. Giulietti, D. Giulietti, L. Labate, T. Levato, T. Pikuz, L. A. Gizzi

摘要:

报道了脉宽为40 fs的2.5 TW高对比度激光脉冲与氩团簇靶相互作用的实验研究。在正向方向观察到一束高电荷、均匀、大发散角的中等动能(~2 MeV)电子束。结果表明,使用台式激光系统可以获得电荷高达10 nC的电子束。加速电子束适用于各种应用,例如空间分辨率优于100微米的薄样品的射线照相。

英文摘要:

We report on an experimental study on the interaction of a high-contrast 40 fs duration 2.5 TW laser pulse with an argon cluster target. A high-charge, homogeneous, large divergence electron beam with moderate kinetic energy (~2 MeV) is observed in the forward direction. The results show, that an electron beam with a charge as high as 10 nC can be obtained using a table-top laser system. The accelerated electron beam is suitable for a variety of applications such as radiography of thin samples with a spatial resolution better than 100 micron.

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