强激光与粒子束, 2020, 32 (11): 112008, 网络出版: 2021-01-04
惯性约束聚变X射线晶体衍射研究及最新进展 下载: 622次
Study on X-ray line emission diffraction in inertial confinement fusion and its recent progress
X射线线谱 X射线衍射 数值模拟 惯性约束聚变 X-ray line emission X-ray diffraction numerical simulation inertial confinement fusion
摘要
介绍了惯性约束聚变研究中X射线线谱诊断与各物理量之间关系,并对X射线晶体谱仪诊断方式及诊断原理进行了简要说明。针对不同类型诊断,介绍了常用不同类型衍射晶体的作用与原理。此外,介绍了最近开展的一种新型变锥面弯晶X射线诊断方法研究,此方法拥有高集光效率的同时,保证了后端接收装置的精巧耦合,减小了像差。以变锥面弯晶衍射特性研究为出发点,开发了一个X射线任意面型晶体衍射追迹仿真软件X-Chase,并以国内某大型激光装置类H、类He线的变锥面晶体诊断为例进行了计算演示,数值模拟结果显示了变锥面晶体具有很好的聚焦效果。
Abstract
This paper introduces the relationship between X-ray line emission diagnosis and various physical quantities in the study of inertial confinement fusion, and briefly explains the diagnosis method and principle of X-ray crystal spectrometer. For different types of diagnosis, it introduces the functions and principles of different commonly used types of diffraction crystals. In addition, it introduces a new type of X-ray diagnostic method of multi-cone curved crystals, which has high light collection efficiency and at the same time ensures the delicate coupling of the back-end receiving device and reduces aberrations. Based on the study of the diffraction characteristics of the multi-cone curved crystal, X-Chase, an X-ray arbitrary surface crystal diffraction tracking simulation software, was developed. At the same time, the multi-cone crystal of H and He line emissions on the SG laser facility is utilized to demonstrate the code functions. The numerical simulation results show that the variable cone crystal has a good focusing ability.
孙奥, 尚万里, 杨国洪, 韦敏习, 黎淼, 车兴森, 侯立飞, 杜华冰, 杨轶濛, 张文海, 杨冬, 王峰, 何海恩, 杨家敏, 江少恩, 张保汉, 丁永坤. 惯性约束聚变X射线晶体衍射研究及最新进展[J]. 强激光与粒子束, 2020, 32(11): 112008. Ao Sun, Wanli Shang, Guohong Yang, Minxi Wei, Miao Li, Xingsen Che, Lifei Hou, Huabing Du, Yimeng Yang, Wenhai Zhang, Dong Yang, Feng Wang, Haien He, Jiamin Yang, Shaoen Jiang, Baohan Zhang, Yongkun Ding. Study on X-ray line emission diffraction in inertial confinement fusion and its recent progress[J]. High Power Laser and Particle Beams, 2020, 32(11): 112008.