Most Kirkpatrick–Baez (KB) microscopes for imaging monochromatic laser-produced plasma are composed of two concave multilayer mirrors; their energy resolution ($\Delta E∕E$) is approximately 1$\times 10^{-1}$. In this study, a new type of monochromatic KB microscope combining a spherically bent crystal and a multilayer mirror was developed. As the spherically bent crystal features a narrow spectral bandwidth, it can attain a high energy resolution. In addition, the grazing incidence angle on the crystal is significantly larger than that on a multilayer mirror; therefore, a large collection solid angle and a high spatial resolution can be achieved. A prototype consisting of a spherically bent mica crystal and a mirror coated with Ni/C multilayers was constructed to demonstrate the feasibility and performance of the proposed KB microscope. In the backlight imaging experiment performed, the microscope achieved a spatial resolution of approximately $10\mathrm{\mu }\mathrm{m}$ throughout a $200\mathrm{\mu }\mathrm{m}$ field of view at 4.51 keV, with $\Delta E∕E$ = 4.9 $\times 10^{-3}$. The proposed KB microscope featuring a high energy and spatial resolution is expected to be a novel experimental tool for inertial confinement fusion (ICF) diagnostics.

大多数用于对单色激光产生的等离子体进行成像的Kirkpatrick-Baez（KB）显微镜是由两个凹面多层反射镜组成的。他们的能量分辨率（$\Delta Ë∕Ë$）大约为1$\times \mathrm{1个}{0}^{-\mathrm{1个}}$。在这项研究中，开发了一种新型的单色KB显微镜，它结合了球面弯曲的晶体和多层镜。由于球形弯曲的晶体具有窄的光谱带宽，因此可以获得高能量分辨率。另外，晶体上的掠入射角明显大于多层镜上的掠入射角。因此，可以实现大的收集立体角和高的空间分辨率。构建了由球形弯曲云母晶体和镀有Ni / C多层膜的反射镜组成的原型，以证明所提出的KB显微镜的可行性和性能。在进行的背光成像实验中，显微镜的空间分辨率约为$10\mathrm{\mu }\mathrm{米}$ 在整个 $200\mathrm{\mu }\mathrm{米}$ 4.51 keV的视场，具有 $\Delta Ë∕Ë$ = 4.9 $\times \mathrm{1个}{0}^{-3}$。提出的具有高能量和空间分辨率的KB显微镜有望成为用于惯性约束融合（ICF）诊断的新型实验工具。