Density effect on relativistic electron beams in a plasma fiber

作者：Zhou, C. T.^*; Wang, X. G.; Wu, S. Z.; Cai, H. B.; Wang, F.; He, X. T.

来源：Applied Physics Letters, 2010, 97(20): 201502.

DOI：10.1063/1.3518720

• LASER
• DRIVEN

Intense short-petawatt-laser driven relativistic electron beams in a hollow high-Z plasma fiber embedded in low-Z plasmas of different densities are studied. When the plasma is of lower density than the hollow fiber, resistive filamentation of the electron beam is observed. It is found that the electron motion and the magnetic field are highly correlated with tens of terahertz oscillation frequency. Depending on the material property around the hollow fiber and the plasma density, the beam electrons can be focused or defocused as it propagates in the plasma. Relativistic electron transport and target heating are also investigated.

• 出版日期2010-11-15
• 单位浙江大学; 北京大学; 北京应用物理与计算数学研究所