Enhanced Water-Window X-Ray Pulse Generation from Femtosecond-Laser-Produced Plasma with a Carbon Nanotube Target
Enhanced Water-Window X-Ray Pulse Generation from Femtosecond-Laser-Produced Plasma with a Carbon Nanotube Target
复制标题
使用碳纳米管靶从飞秒激光产生的等离子体中生成增强型水窗 X 射线脉冲
DOI：
10.1143/jjap.42.l990
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发表时间：
2003
影响因子：
1.5
通讯作者：
H. Nakano
中科院分区：
文献类型：
--
作者：
T. Nishikawa;K. Oguri;Satoru Suzuki;Y. Watanabe;O. Zhou;H. Nakano
采用碳纳米管靶提高飞秒激光等离子体水窗X光脉冲转换效率。目标是垂直排列的多壁碳纳米管阵列，每个直径为30 nm，长约12 µm。中心到中心的纳米管距离约为150 nm。与传统的碳板靶相比，水窗区的X射线通量增强了7倍。通过优化碳纳米管的尺寸，可以预期进一步的增强。X射线脉冲持续时间为26 ps。结果表明，碳纳米管作为飞秒激光等离子体X射线源在单次X射线显微镜中的靶是非常有吸引力的。
We adopt a carbon nanotube target to increase the efficiency of water-window X-ray pulse conversion from femtosecond-laser-produced plasma. The target is an array of vertically aligned multiwalled carbon nanotubes, each 30 nm in diameter and about 12-µm long. Center-to-center nanotube distance is around 150 nm. The X-ray fluence enhancement in the water-window region is seven-fold compared with a conventional carbon plate target. Further enhancement can be expected by optimizing the size of the carbon nanotubes. X-ray pulse duration is 26 ps. The results show that carbon nanotubes are very attractive as a target for femtosecond laser-produced-plasma X-ray sources in single-shot X-ray microscopy.