2.5 keV能点多层膜KB显微镜成像性能

伊圣振; 穆宝忠; 蒋励; 朱京涛; 王占山; 曹柱荣; 董建军

doi:10.3788/HPLPB20122408.1770

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2.5 keV能点多层膜KB显微镜成像性能

doi: 10.3788/HPLPB20122408.1770

伊圣振^1,2,3,
穆宝忠^1,2,3, ,,
蒋励^1,2,3,
朱京涛^1,2,3,
王占山^1,2,3,
曹柱荣⁴,
董建军⁴

1.
同济大学,上海 200092;
2.
同济大学教育部先进微结构材料重点实验室,上海 200092;
3.
同济大学精密光学工程技术研究所,上海 200092;
4.
中国工程物理研究院激光聚变研究中心,四川绵阳 621 900

详细信息

通讯作者:
穆宝忠

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- 被引次数: 0
出版历程
- 收稿日期: 2011-09-16
- 刊出日期: 2012-08-15

Imaging characteristics of 2.5 keV multilayer Kirkpatrick-Baez microscope

Yi Shengzhen^1,2,3,
Mu Baozhong^{1,2,3
, ,},
Jiang Li^1,2,3,
Zhu Jingtao^1,2,3,
Wang Zhanshan^1,2,3,
Cao Zhurong⁴,
Dong Jianjun⁴

1.
Tongji University,Shanghai 200092,China;
2.
Key Laboratory of Advanced Micro-structured Materials,Ministry of Education,Tongji University,Shanghai 200092,China;
3.
Institute of Precision Optical Engineering,Tongji University,Shanghai 200092,China;
4.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China

摘要

摘要: 研究了Kirkpatrick-Baez（KB）显微镜成像系统的结构设计、元件制备。通过分析掠入射角、放大倍数和反射镜曲率半径对成像系统调制传递函数（MTF）的影响，确定了KB显微镜系统的初始结构参数，实现了2.5 keV能点多层膜KB显微镜的设计、制备以及装调，在神光Ⅱ强激光装置上完成了像质标定实验。结果表明:2.5 keV能点多层膜KB显微镜在100 m视场内观测周期为20 m平面调制靶时的MTF高于0.6，与OMEGA装置同类型KB系统的空间分辨能力相当，明显优于现有的针孔相机和点投影成像技术。该显微镜与条纹相机配合，已成功实现对短扰动波长平面调制靶烧蚀演化行为的动态诊断。
- Kirkpatrick-Baez显微镜 /
- 等离子体诊断 /
- 调制传递函数 /
- 平面调制靶 /
- 流体力学不稳定性
Abstract: A 2.5 keV multilayer Kirkpatrick-Baez microscope was developed and its imaging characteristics were studied from aspects of optical design and experimental calibration. The optical parameters were determined by analyzing the influences of grazing incidence angle, magnification, and radius of curvature on modulation transfer function(MTF). The multilayer, simultaneously working at 2.5 keV and 8 keV, was designed and coated to complete the system alignment. The imaging result at ShenguangⅡ laser facility shows that the MTF over the object field of 100 m is above 0.6 for 20 m wavelength, significantly better than those of the existing pinhole camera and point-projection X-ray radiography. The microscope, coupled with the streak camera, can be used for dynamic diagnostics of target ablation with small spatial perturbation mode.
- kirkpatrick-baezmicroscope /
- plasmadiagnostics /
- modulationtransferfunction /
- surfaceperturbationtarget /
- hydrodynamicinstability