用于快点火等离子体观测的单色X射线采样条纹成像仪。

Monochromatic x-ray sampling streak imager for fast-ignitor plasma observation.

作者信息

Tanabe Minoru, Fujiwara Takashi, Fujioka Shinsuke, Nishimura Hiroaki, Shiraga Hiroyuki, Azechi Hiroshi, Mima Kunioki

机构信息

Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871, Japan.

出版信息

Rev Sci Instrum. 2008 Oct;79(10):10E908. doi: 10.1063/1.2965145.

DOI:10.1063/1.2965145

PMID:19044563

Abstract

Ultrafast two-dimensional (2D) x-ray imaging is required to investigate the dynamics of fast-heated core plasma in inertial confinement fusion research. A novel x-ray imager, consisting of two toroidally bent Bragg crystals and an ultrafast 2D x-ray imaging camera, has been demonstrated. Sequential and 2D monochromatic x-ray images of laser-imploded core plasma were obtained with a temporal resolution of 20 ps, a spatial resolution of 31 mum, and a spectral resolution of over 200, simultaneously.

摘要

在惯性约束聚变研究中，需要超快二维（2D）X射线成像来研究快速加热的核心等离子体的动力学。一种新型的X射线成像仪已得到验证，它由两个环形弯曲布拉格晶体和一个超快二维X射线成像相机组成。利用该成像仪，同时获得了激光内爆核心等离子体的序列和二维单色X射线图像，时间分辨率为20皮秒，空间分辨率为31微米，光谱分辨率超过200。