Energy enhancement of proton acceleration in combinational radiation pressure and bubble by optimizing plasma density

被引：11
作者：
Bake, Muhammad Ali [1 ,2 ]
Shan-Zhang [3 ]
Xie, Bai-Song [1 ,2 ]
Hong, Xue-Ren [2 ,4 ]
Wang, Hong-Yu [5 ,6 ]
机构：
[1] Beijing Normal Univ, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
[3] Shijiazhuang Tiedao Univ, Dept Math & Phys, Shijiazhuang 050043, Peoples R China
[4] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China
[5] Anshan Normal Univ, Dept Phys, Anshan 114005, Peoples R China
[6] Shanghai Bright Tech Informat Technol Co Ltd, Shanghai 200136, Peoples R China
来源：
PHYSICS OF PLASMAS | 2012年 / 19卷 / 08期
基金：
中国国家自然科学基金;
关键词：
LASER; REGIME;
D O I：
10.1063/1.4742170
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The combinational laser radiation pressure and plasma bubble fields to accelerate protons are researched through theoretical analysis and numerical simulations. The dephasing length of the accelerated protons bunch in the front of the bubble and the density gradient effect of background plasma on the accelerating phase are analyzed in detail theoretically. The radiation damping effect on the accelerated protons energy is also considered. And it is demonstrated by two-dimensional particle-in-cell simulations that the protons bunch energy can be increased by using the background plasma with negative density gradient. However, radiation damping makes the maximal energy of the accelerated protons a little reduction. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742170]
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页数：7
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