质子初始位置对激光平面靶相互作用加速质子的影响(英文)  

Effect of proton initial locations on proton acceleration by interaction of laser and plain target

作　　者：余金清[1,2] 洪伟[2] 金晓林[1] 周维民[2] 李斌[1] 谷渝秋[2] 

机构地区：[1]电子科技大学物理电子学院,大功率微波电真空器件技术国防科技重点实验室,成都610054 [2]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2012年第5期1085-1088,共4页High Power Laser and Particle Beams

基　　金：Supported by National Natural Science Foundation of China(Grant No.10975121,11174259,11175165 and 10975121);Doctorate Foundation of the Ministry of Education of China(Grant No.200806141034);Fundamental Research Funds for the Central Universities(Grant No.ZYGX2010J052);Natural Key Laboratory of Laser Fusion(Grant No.9140c6802031003)

摘　　要：为了更细致地理解鞘场质子加速机制,应用2维数值模拟程序Flips2D研究了质子的初始位置对加速以后质子束特性的影响。数值模拟结果表明:质子的初始位置对质子束特性的影响非常明显。质子的出射角与其在横向的初始位置有关,初始位置离激光轴越远,其出射角越大。For further understanding of the proton acceleration by target normal sheath acceleration（TNSA）,the effect of the proton initial locations on the quality of the proton beam is investigated by two-dimensional particle-in-cell（2D-PIC） code Flips2D.The simulation results show that the effect of the proton initial locations on the proton quality is very significant.The divergence of protons is related to their initial locations in transverse direction.The farther away the protons is from the laser axis,the larger the proton divergence can be received.

关 键 词：质子加速 鞘场加速机制 粒子模拟 质子束质量 

分 类 号：O572.34[理学—粒子物理与原子核物理]