| 弱谐波情况下透射光栅衍射效率标定方法 |
| |
| 引用本文： | 朱托,尚万里,杨家敏,熊刚,赵阳,张文海,况龙钰,赵屹东,崔明启,郑雷,韩勇,周克瑾,马陈燕. 弱谐波情况下透射光栅衍射效率标定方法[J]. 强激光与粒子束, 2014, 26(1): 012008. DOI: 10.3788/HPLPB201426.012008 |
| |
| 作者姓名： | 朱托 尚万里 杨家敏 熊刚 赵阳 张文海 况龙钰 赵屹东 崔明启 郑雷 韩勇 周克瑾 马陈燕 |
| |
| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 绵阳 621 900; |
| |
| 基金项目： | 国家自然科学基金项目 (11305158，11205143)；中国工程物理研究院科学技术发展基金项目(2013B0102012) |
| |
| 摘 要： | 同步辐射光源中的高次谐波会使透射光栅衍射效率标定精度变差。为了校正光源中的高次谐波对透射光栅衍射效率标定的影响,提出了一种光源存在弱谐波情况下的透射光栅衍射效率标定方法,通过使用谐波X射线的衍射效率修正基波衍射效率标定中谐波的影响,从而得到更为准确的透射光栅衍射效率。使用该标定方法在北京同步辐射光源上开展了透射光栅相对衍射效率标定工作。实验结果表明:在100~800eV存在高次谐波能段,修正后透射光栅一级与零级的相对衍射效率与理论模拟结果吻合较好,修正后光栅二级与一级的相对衍射效率更接近理论模拟结果,但与理论模拟结果仍有较大偏差,该偏差主要来源光栅较弱的二级衍射。
|
| 关 键 词： | 透射光栅 衍射效率 实验标定 修正谐波 |
| 收稿时间： | 2013-03-21; |
Calibration method of transmission grating diffraction efficiency with weak high-order harmonics |
| |
| Zhu Tuo,Shang Wanli,Yang Jiamin,Xiong Gang,Zhao Yang,Zhang Wenhai,Kuang Longyu,Zhao Yidong,Cui Mingqi,Zheng Lei,Han Yong,Zhou Kejin,Ma Chenyan. Calibration method of transmission grating diffraction efficiency with weak high-order harmonics[J]. High Power Laser and Particle Beams, 2014, 26(1): 012008. DOI: 10.3788/HPLPB201426.012008 |
| |
| Authors: | Zhu Tuo Shang Wanli Yang Jiamin Xiong Gang Zhao Yang Zhang Wenhai Kuang Longyu Zhao Yidong Cui Mingqi Zheng Lei Han Yong Zhou Kejin Ma Chenyan |
| |
| Affiliation: | 1.Research Center of Laser Fusion,CAEP,Mianyang 621900,China;2.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China |
| |
| Abstract: | The accuracy of transmission grating calibration on synchrotron radiation could be worsened by high-order harmonics. In order to correct this influence, a calibration method was proposed for the light source with weak high-order harmonics. This method corrected the fundamental wave diffraction efficiency using the high-order harmonics diffraction efficiencies which were obtained in calibration too. This verifying experiment was carried out on Beijing Synchrotron Radiation Facility. The experimental results show that the corrected ratio of first-zero order diffraction efficiency to zero-order agreed well with the calculated results between 100-800 eV where high-order harmonics existed. The ratio of second-order diffraction efficiency to first-order was more closed to the calculated results though some difference still existed. This difference came from the weak two-order diffraction. |
| |
| Keywords: | diffraction efficiency experimental calibration harmonics correction |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载免费的PDF全文 |
|
