| Radiography of a K_α X-ray source generated through ultrahigh picosecond laser–nanostructure target interaction |
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| 引用本文： | 王剑,赵宗清,何卫华,朱斌,董克攻,吴玉迟,张天奎,高牛,周凯南,谢娜,周维民,谷渝秋.Radiography of a K_α X-ray source generated through ultrahigh picosecond laser–nanostructure target interaction[J].Chinese Optics Letters,2015(3):22-25. |
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| 作者姓名： | 王剑 赵宗清 何卫华 朱斌 董克攻 吴玉迟 张天奎 高牛 周凯南 谢娜 周维民 谷渝秋 |
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| 作者单位： | Department of Physics, Fudan University;Research Center of Laser Fusion, China Academy of Engineering Physics |
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| 基金项目： | supported by the National Science Foundation of China(Grant Nos.1174259,11175030,11475030,and10905051);the Science and Technology on Plasma Physics Laboratory(Grant No.9140c680306120c68253);the China Academy of Engineering Physics Foundation(Grant No.2011B0102021) |
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| 摘 要： | Laser-driven ultrafast X-ray sources are widely used for diagnostic radiography. However, there is a large divergence of fast electrons when they are generated by an intense short-pulse laser interacting with a foil target.We design a nanowire array target to achieve a more compact point X-ray source. Fast electrons are confined and guided by the nanowire array structure in order to generate a Kαsource with a small spot size. In our work, the smallest measured source size is comparable to the laser spot size, while the conversion efficiency can reach2.4 × 10-4.
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| 关 键 词： | radiography interacting divergence confined guided comparable smallest ultrahigh diagnostic projection |
Radiography of a K_α X-ray source generated through ultrahigh picosecond laser–nanostructure target interaction |
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| Jian Wang;Zongqing Zhao;Weihua He;Bin Zhu;Kegong Dong;Yuchi Wu;Tiankui Zhang;Gao Niu;Kainan Zhou;Na Xie;Weimin Zhou;Yuqiu Gu.Radiography of a K_α X-ray source generated through ultrahigh picosecond laser–nanostructure target interaction[J].中国光学快报(英文版),2015(3):22-25. |
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| Authors: | Jian Wang;Zongqing Zhao;Weihua He;Bin Zhu;Kegong Dong;Yuchi Wu;Tiankui Zhang;Gao Niu;Kainan Zhou;Na Xie;Weimin Zhou;Yuqiu Gu |
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| Institution: | Jian Wang;Zongqing Zhao;Weihua He;Bin Zhu;Kegong Dong;Yuchi Wu;Tiankui Zhang;Gao Niu;Kainan Zhou;Na Xie;Weimin Zhou;Yuqiu Gu;Department of Physics, Fudan University;Research Center of Laser Fusion, China Academy of Engineering Physics; |
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