Kα射线源半影成像研究

• 作 者: 王剑 赵宗清 蔡达锋 黄文忠 何颖玲 谷渝秋
• 机 构: 中国工程物理研究院激光聚变研究中心,内江师范学院物理与电子信息工程学院,
• 出 处: 物理学报
• 发表日期: 2009年10期
• 关键词: 半影 α源 Kα源 成像研究 半影成像 纳米 纳米靶 超热电子 二维成像 固体靶

在SILEX-Ⅰ激光装置上,采用半影成像技术对超短超强激光与纳米靶作用产生的Kα源进行了空间二维成像,获得了分辨率为10μm左右的图像.与国外的结果相比,在较小能量激光器上高质量地实现了铜Kα源空间二维半影成像.实验表明,半影成像能得到详细的Kα源空间分布的细节信息,优于刀边成像等一维成像技术.

In the SILEX-I laser device, the two-dimensional imaging of the Kα source generated by the ultrashort superlattice laser and the nano-target was performed by using the penumbra imaging technology, and the image with the resolution of 10μm was obtained. Compared with the foreign results , The high-quality two-dimensional penumbra imaging of copper Kα source space is realized on the smaller energy laser.The experimental results show that the detailed information of the spatial distribution of Kα source can be obtained by penumbra imaging, which is better than the one-dimensional imaging technology such as knife edge imaging .