广角任意反射面速度干涉仪虚像性质

吴宇际; 张青; 王峰; 理玉龙

doi:10.11884/HPLPB202234.220226

广角任意反射面速度干涉仪虚像性质

doi: 10.11884/HPLPB202234.220226

吴宇际^1,,
张青¹,
王峰^2, ,,
理玉龙²

1.
火箭军工程大学核工程学院，西安 710025
2.
中国工程物理研究院激光聚变研究中心，四川绵阳 621900

基金项目: 国家自然科学基金项目(12005299)；陕西省高校科协青年人才托举计划项目（20200507）；火箭军工程大学青年基金项目（2020QNJJ001）

详细信息

作者简介:
吴宇际，yujiwu@mail.ustc.edu.cn

通讯作者:
王　峰，lfrc_wangfeng@163.com

中图分类号: TN206
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- 被引次数: 0
出版历程
- 收稿日期: 2022-07-15
- 修回日期: 2022-08-23
- 网络出版日期: 2022-08-24
- 刊出日期: 2022-09-20

Virtual image properties of wide-angle velocity interferometer system for any reflector

Wu Yuji^1
,,
Zhang Qing¹,
Wang Feng^{2
, ,},
Li Yulong²

1.
School of Nuclear Engineering, Rocket Force University of Engineering, Xi’an 710025, China
2.
Laser Fusion Research Center, CAEP, Mianyang 621900, China

摘要

摘要: 通过分析虚像连续性和位置分辨，指出点集散判据相比相位差判据更适合用于广角任意反射面速度干涉仪(VISAR)靶虚像模型构建。基于点集散判据计算了椭球镜形状参数、像面记录方式、冲击波面倾斜对广角VISAR靶虚像的影响，发现虚像外内径之比总保持在8左右，且$ {10^{ - 5}}\left( {k - 400} \right) \lt m \lt {10^{ - 5}}k $ （k与m为广角VISAR靶形状参数）时，椭球镜加工误差对像面影响较小；对像面进行平面检测难以得到动态干涉条纹；广角VISAR诊断区域允许波面平均倾斜不超过2°。讨论了广角VISAR靶虚像相干性、异形光纤面板的加工、椭球镜参数的选取、物像重构等问题，对诊断实验提出了参考建议。虚像性质研究为广角VISAR诊断能力提升奠定了基础，对惯性约束聚变内爆对称性诊断具有重要意义。
- 任意反射面速度干涉仪 /
- 广角诊断 /
- 虚像 /
- 点集散判据 /
- 惯性约束聚变
Abstract: By comparing the continuity and resolution of virtual image at “point convergence criterion” and “phase difference criterion”, it is proposed that the former is more suitable for virtual image model of wide-angle velocity interferometer system for any reflector (VISAR). Based on “point convergence criterion”, the effects of ellipsoidal mirror parameters, image recording method and shock wave tilt on the virtual image of the wide-angle VISAR target are analyzed. It is discovered that the ratio of outer and inner diameter of the virtual image is about 8 and the ellipsoidal mirror processing error has little influence on image surface when $ {10^{ - 5}}\left( {k - 400} \right) \lt m \lt {10^{ - 5}}k $ (k and m are the shape parameters of wide-angle VISAR target), it is difficult to obtain dynamic interference fringes in plane detection and wide-angle VISAR diagnosis allows the average inclination angle of shock wave not to exceed 2°. Issues such as virtual image interference of wide-angle VISAR, processing of special-shaped fiber optic panels, selection of ellipsoidal mirror parameters and image reconstruction are discussed, and some suggestions for diagnostic experiments are given. The research on properties of virtual image lays a foundation for the improvement of wide-angle VISAR diagnostic capability, and is of great significance for the symmetry diagnosis in inertial confinement fusion.
- velocity interferometer system for any reflector /
- wide-angle diagnosis /
- virtual image /
- point convergence criterion /
- inertial confinement fusion

HTML全文

图 1 广角VISAR诊断示意图

Figure 1. Schematic diagram of wide-angle VISAR diagnosis

下载: 全尺寸图片幻灯片

图 2 不同判据下广角VISAR诊断靶虚像

Figure 2. Wide-angle VISAR diagnostic target virtual image at different criterion

(The left side of the sub-figure is the projection of virtual image on xz plane, and the right side is the projection of virtual image on xy plane. The colored area is capsule, the green area is ellipsoid mirror and the red area is virtual image)

下载: 全尺寸图片幻灯片

图 3 不同判据下的广角VISAR诊断靶虚像分辨

Figure 3. Wide-angle VISAR diagnostic target virtual image resolution at different criterion

(The figure shows the projection of virtual image of wide-angle VISAR diagnostic target on xy plane. The left side of sub-figure is horizontal resolution, and the right side is vertical resolution)

下载: 全尺寸图片幻灯片

图 4 广角VISAR虚像形状随椭球镜参数的变化

Figure 4. Variation of wide-angle VISAR virtual image (curved ring) shape with different ellipsoidal mirror parameters

下载: 全尺寸图片幻灯片

图 5 点集散判据下m=0.016, k=2000 μm时平面z=−300 μm, −200 μm, −100 μm处虚像分辨

Figure 5. The virtual image resolution of plane z=−300 μm, −200 μm, −100 μm when m=0.016, k=2000 μm at point convergence criterion

下载: 全尺寸图片幻灯片

图 6 冲击波面倾斜对广角VISAR虚像的影响

Figure 6. Influence of inclined wavefront on wide-angle VISAR virtual image

下载: 全尺寸图片幻灯片

表 1 广角VISAR虚像外内径之比随椭球镜形状参数的变化

Table 1. Variation of the ratio of the outer and inner diameter of wide-angle VISAR virtual image with different ellipsoidal mirror parameters

m	ratio of the outer and inner diameter at different ellipsoidal mirror parameters
m	800 μm	1000 μm	1200 μm	1400 μm	1600 μm	1800 μm	2000 μm	2200 μm	2400 μm	2600 μm
0.006	8.7	8.7	8.7	8.7	8.7	8.8	8.8	8.8	8.8	8.8
0.008	8.5	8.5	8.5	8.5	8.5	8.5	8.5	8.5	8.6	8.6
0.010	8.3	8.3	8.3	8.3	8.3	8.3	8.4	8.4	8.4	8.4
0.012	8.1	8.1	8.1	8.1	8.2	8.2	8.2	8.2	8.3	8.3
0.014	7.9	7.9	7.9	8.0	8.0	8.0	8.1	8.1	8.1	8.2
0.016	7.7	7.8	7.8	7.8	7.9	7.9	8.0	8.0	8.0	8.1
0.018	7.6	7.6	7.7	7.7	7.8	7.8	7.8	7.9	7.9	8.0
0.020	7.4	7.5	7.5	7.6	7.6	7.7	7.7	7.8	7.9	8.0
0.022	7.3	7.4	7.4	7.5	7.5	7.6	7.7	7.8	7.9	−
0.024	7.2	7.3	7.3	7.4	7.4	7.5	7.6	7.8	−	−

下载: 导出CSV

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