Generation of stable and low-divergence 10-MeV quasimonoenergetic electron bunch using argon gas jet
Generation of stable and low-divergence 10-MeV quasimonoenergetic electron bunch using argon gas jet
复制标题
DOI：
10.1103/physrevstab.12.082801
复制
发表时间：
2009-08
影响因子：
--
通讯作者：
M. Mori;K. Kondo;Y. Mizuta;M. Kando;H. Kotaki;M. Nishiuchi;M. Kado;A. Pirozhkov;K. Ogura
中科院分区：
文献类型：
--
作者：
M. Mori;K. Kondo;Y. Mizuta;M. Kando;H. Kotaki;M. Nishiuchi;M. Kado;A. Pirozhkov;K. Ogura
大坂大学激光工程研究所，Yamadaoka 2-6，Suita，Osaka 565-0871，Japan（2008年9月12日接收; 2009年8月11日发表）研究了在自注入激光-等离子体加速机制中使用4 TW激光产生的准单能电子束团的指向稳定性和发散性。使用氩气喷射靶进行50次连续发射，获得了2.4毫拉德均方根（rms）的指向稳定性和10.6毫拉德（rms）的光束发散度，而在使用氦气的最佳条件下，这些值下降了3倍。峰值电子能量分别为8：5 0：7和24：8 3：6 MeV，使用氩气和氦气，分别。实验结果表明，在相同的辐照条件下，不同的材料可以产生不同的传播条件。
Institute of Laser Engineering, Osaka University, Yamadaoka 2-6, Suita, Osaka 565-0871, Japan(Received 12 September 2008; published 11 August 2009)The pointing stability and divergence of a quasimonoenergetic electron bunch generated in a self-injected laser-plasma acceleration regime using 4 TW laser is studied. A pointing stability of 2.4 mradroot-mean-square (rms) and a beam divergence of 10.6 mrad (rms) were obtained using an argon gas-jettarget for 50 sequential shots, while these values were degraded by a factor of 3 at the optimum conditionusing helium. The peak electron energies were 8:5 0:7 and 24:8 3:6 MeV using argon and helium,respectively. The experimental results indicate that the different propagation condition could be generatedwith the different material, although it is performed with the same irradiation condition.