成像型任意反射面速度干涉仪测速精度检测

王伟宁; 王峰; 江少恩; 付绍军

doi:10.3788/HPLPB20122409.2121

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成像型任意反射面速度干涉仪测速精度检测

doi: 10.3788/HPLPB20122409.2121

王伟宁^1,2,3, ,,
王峰³,
江少恩³,
付绍军^1,2

1.
中国科学技术大学核科学技术学院, 合肥 230027;
2.
中国科学技术大学国家同步辐射实验室, 合肥 230029;
3.
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:
王伟宁

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- 被引次数: 0
出版历程
- 收稿日期: 2011-12-28
- 修回日期: 2012-02-24
- 刊出日期: 2012-08-24

Accuracy examination of shock speed measurement by imaging velocity interferometer system for any reflector

1.
School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230027,China;
2.
National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China;
3.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China

摘要

摘要: 基于神光Ⅲ原型装置，提出了一种对成像型任意反射面速度干涉仪(VISAR)测量冲击波速度的精度进行实验检验的方法。针对一般双灵敏度VISAR存在的多值问题，该方法利用厚度已知的样品获得了准确的冲击波速度历史曲线图，并给出其测速精度。同时在理论上对这套测速系统进行了不确定度评估，预估结果与实验结果相吻合，验证了这种方法的正确性。此外，该方法还可用于单灵敏度VISAR确定条纹丢失的数目，仅凭一台条纹相机就可确定速度历史曲线。
- 冲击波测速精度 /
- 双灵敏度 /
- 条纹丢失 /
- 不确定度
Abstract: Based on SG-Ⅲ prototype laser facility, an experimental method to examine the accuracy of shock speed measurement by imaging velocity interferometer system for any reflector(VISAR) was developed. The conventional double-sensitivity method leads to multiple results. Whereas, with samples of known thickness, the accurate curve of shock wave velocity and accuracy of shock speed measurement were achieved by the proposed method. Also a theoretical calculation of this system was carried out. The theoretical and experimental results agree with each other perfectly. This method can also help to acquire the number of lost fringes on single-sensitivity VISAR. With only one streak camera, the accurate curve of shock wave velocity can be achieved.
- accuracy of shock speed measurement /
- double-sensitivity method /
- lost fringes /
- uncertainty