Study of laser-imploded core plasmas with an advanced Kirkpatrick–Baez x-ray microscope
Study of laser-imploded core plasmas with an advanced Kirkpatrick–Baez x-ray microscope
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使用先进的柯克帕特里克-贝兹 X 射线显微镜研究激光内爆核心等离子体
DOI：
10.1063/1.1147699
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发表时间：
1997
影响因子：
1.6
通讯作者：
Y. Kato
中科院分区：
文献类型：
--
作者：
R. Kodama;H. Shiraga;M. Miyanaga;T. Matsushita;M. Nakai;H. Azechi;K. Mima;Y. Kato
我们开发了一种先进的Kirkpatrick-Baez（AKB）X射线显微镜，由两个双曲面镜和两个椭圆镜组成。在1 mm直径范围内，空间分辨率可达1.3 μm。这台AKB显微镜用于激光聚变实验中的X射线成像。用显微镜测量了固体球靶和平板靶表面的X射线辐射，估算了大波数激光吸收不均匀性。通过改变激光聚焦条件和激光能量平衡，用AKB显微镜获得了内爆等离子体的X射线图像。
We developed an advanced Kirkpatrick–Baez (AKB) x-ray microscope which consisted of two hyperbolic mirrors and two elliptic mirrors. The spatial resolution of ≲3 μm was realized over ∼1 mm diam. This AKB microscope was used for x-ray imaging in laser fusion experiments. Laser absorption nonuniformity with a large wave number on a spherical solid target or a plane slab target was estimated by measurements of x-ray emission from the target surface with the microscope. The x-ray images of the imploded core plasmas were also obtained with the AKB microscope, changing the laser focus condition and the laser energy balance.