Improvement of proton acceleration via collisionless shock acceleration by laser-foil interaction with an external magnetic field
Improvement of proton acceleration via collisionless shock acceleration by laser-foil interaction with an external magnetic field
复制标题
通过激光箔与外部磁场相互作用的无碰撞冲击加速来改善质子加速
DOI：
10.1063/1.5120426
复制
发表时间：
2019-12
影响因子：
2.2
通讯作者：
Xian-Tu He
中科院分区：
文献类型：
--
作者：
Rui Xie;Lihua Cao;J. X. Gong;H. Cheng;Zhenming Liu;Chao Zheng;Xian-Tu He
Effects of the external intense axial magnetic field on collisionless shock acceleration (CSA) are investigated by using two-dimensional particle-in-cell simulations. Proton beams accelerated by CSA show different properties when left-hand circularly polarized (LHCP) or right-hand circularly polarized (RHCP) lasers are individually applied to a foil target with or without the magnetic field. It can be attributed to the difference of the dispersion relationship for the laser propagating in a plasma. Protons achieve more efficient acceleration when magnetized plasma is irradiated by the RHCP laser compared with the LHCP laser. Furthermore, the effect of different amplitudes of the magnetic field is studied numerically. It shows that the induced electrostatic charge-separation field arises deep in the target with huge strength of the magnetic field. Protons in the upstream are accelerated before the shock arrives, leading to less efficient acceleration. As a result, an appropriate magnetic field should be applied to enhance the CSA regime.
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影响因子：
2.2
作者：
Anamika Sharma;C. Liu;V. Tripathi
通讯作者：
Anamika Sharma;C. Liu;V. Tripathi
影响因子：
8.6
作者：
FORSLUND, DW;SHONK, CR
通讯作者：
SHONK, CR
影响因子：
8.6
作者：
Chang, P. Y.;Fiksel, G.;Petrasso, R. D.
通讯作者：
Petrasso, R. D.
在高密度等离子体中通过超强激光脉冲产生无碰撞静电冲击和离子加速
影响因子：
2.2
作者：
通讯作者：
--
影响因子：
8.6
作者：
Mora, P
通讯作者：
Mora, P