适用于ICF内爆压缩对称性诊断的准三维VISAR关键技术研究

批准号:
12005205
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
徐涛
依托单位:
学科分类:
等离子体诊断技术
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
徐涛
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中文摘要
内爆压缩对称性是影响间接驱动惯性约束聚变(ICF)内爆性能的主要因素。随着精密化内爆实验研究的开展,对内爆压缩对称性的诊断已经凸显出对高精度时变连续测量和反映球壳层真实三维压缩情况的需求。然而通常使用的诊断方法大都不能实现高精度时变连续测量,也不能诊断三维压缩信息。本项目拟以多轴VISAR技术为基础并借鉴MPDV技术的特点,发展以靶丸内部的三维多角度光束分割技术为典型特征、且多目标区域同时干涉测速的准三维VISAR技术,最终用三维多个区域的速度历程反演为内爆靶丸壳层的压缩位移信息。针对内爆实验的应用环境,研究和解决强辐射环境下微型光束分割器件反射寿命问题,利用材料优化及屏蔽措施制备具有稳定反射性质的光束分割器件和内爆耦合靶,利用空分复用方式建立多目标区域同时干涉测量技术,将准三维VISAR技术推向实用化,为内爆压缩对称性研究提供具备高精度时变连续及三维测量能力的诊断技术。
英文摘要
The compression symmetry of implosion is the main factor that affects the implosion performance of ICF. With the development of precision implosion experimental research, the diagnosis of implosion compression symmetry has highlighted the need for high-precision time-varying continuous measurement and reflecting the real three-dimensional compression of spherical shell. However, most of the commonly used diagnostic methods can not achieve time-varying continuous measurement, nor can they diagnose three-dimensional compressed information. Based on the multi-axis VISAR technology and the characteristics of MPDV technology, this project plans to develop the quasi three-dimensional VISAR technology, which takes the three-dimensional multi angle beam segmentation technology inside the spherical shell of the target as the typical feature, and the multi-target area interferes with the velocity measurement at the same time. Finally, the three-dimensional multi area velocity history is used to invert the compression displacement information of the implosion target shell. Aiming at the application environment of implosion experiment, this paper studies and solves the reflection life problem of micro beam splitting device under the strong radiation environment. By using material optimization and shielding measures, the beam splitting device and implosion coupling target with stable reflection property are prepared. By using space division multiplexing method, multi-target area simultaneous Interferometry Technology is established, and the quasi three-dimensional VISAR technology is gradually promoted to be practical, which is implosion Compression symmetry research provides diagnostic technology with high-precision time-varying continuous and three-dimensional measurement capabilities.
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DOI:10.1088/1361-6501/ac29d4
发表时间:2021
期刊:MEASUREMENT SCIENCE AND TECHNOLOGY
影响因子:--
作者:Guan Zanyang;Li Yulong;Wang Feng;Liu Xiangming;Peng Xiaoshi;Xu Tao;Ren Kuan;Wei Huiyue;Liu Yonggang
通讯作者:Liu Yonggang
DOI:10.3788/aos202242.0514003
发表时间:2022
期刊:光学学报
影响因子:--
作者:徐涛;理玉龙;刘欣城;刘祥明;李志超;龚韬;彭晓世;李平;杨冬;王峰;杨家敏
通讯作者:杨家敏
国内基金
海外基金
