利用超强度激光与等离子体相互作用产生高能质子(英文)  

Energetic Proton Generation in Interaction of Ultra-intense Laser with Overdense Plasma

作　　者：阿不都热苏力 帕尔哈提[1] 艾尔肯.扎克尔 

机构地区：[1]新疆大学物理科学与技术学院,乌鲁木齐830046

出　　处：《喀什师范学院学报》2012年第3期31-34,共4页Journal of Kashgar Teachers College

基　　金：supported by the National Natural Science Foundation of P.R(10965008);Research Strarting Foundation for the doctoral of Xinjiang University,China(BS090115)

摘　　要：超短超强激光与等离子体相互作用中产生的高能质子在激光惯性约束核聚变,新型台面质子加速器以及医学等研究领域已成为广泛关注的一个热点.本文利用粒子模拟方法(Particle-in-Cell)研究强度为1020 W/cm2的激光脉冲照射平板和椭圆形等离子体靶时的高能质子加速情况,研究结果表明,等离子体的形状直接影响被加速的质子能量.Studies on the high energy ion beams generated in ultraintense laser-plasma interactions has made consider- able progress recently due to the development of high power laser technologies, such as fast ignition of inertial confine- ment fusion, tabletop proton accelerators, and medical applicat/ons. Now the .research of energetic proton is one of the hotspets. In particular the production of intense proton beams from solid target irradiated with lasers with intensities up to 10~ W/cm2 has caused intense research into the proton acceleration mechanism. In this paper, PIC （Particle-in-Cell） simulation of the plasma target on energetic proton acceleration by ultra-intense laser interaction indicated that a change in the plasma target shape directly affects the degree of contraction accelerated proton bunch.

关 键 词：粒子模拟 超强激光 高能质子 椭圆形等离子体靶 

分 类 号：O539[理学—等离子体物理]