Simultaneous high-resolution x-ray backlighting and self-emission imaging for laser-produced plasma diagnostics using a two-energy multilayer Kirkpatrick–Baez microscope

Abstract

A simultaneous high-resolution x-ray backlighting and self-emission imaging method for laser-produced plasma diagnostics is developed in which two Kirkpatrick–Baez imaging channels for high-energy and low-energy diagnostics are constructed using a combination of multilayer mirrors in near-coaxial form. By using a streak or framing camera placed on the image plane, both backlit and self-emission images of a laser-produced plasma with high spatial and temporal resolution can be obtained simultaneously in a single shot. This paper describes the details of the method with regard to its optical and multilayer design, assembly, and alignment method. In addition, x-ray imaging results with a spatial resolution better than 5 µm in the laboratory and experimental results with imploding capsules in the SG-III prototype laser facility are presented.

X-ray Self-Emission Imaging of Hydrodynamic Laser-Induced Astrophysical Phenomena

“…The Kirkpatrick-Baez multichannel microscope, for example, has a small spatial range of ~0.5 mm [81] and requires a long time to adjust. Therefore, it has been used mainly in unique experiments on inertial thermonuclear fusion [49].…”

High efficiency, high-resolution multiple monochromatic imaging based on multilayers mirrors array for laser-plasma diagnostic of X-ray continuum emission

“…Reference source not found.-2]. Current methodologies predominantly comprise transmission-type Ross filters [4], and diffraction-type gratings or crystals used in spectroscopy [5][6][7][8]. While Ross filters are simple and reliable, they offer limited spectral resolution.…”

High-resolution Mo Kα X-ray monochromatic backlight imaging using a toroidal crystal

“…High-resolution X-ray imaging is very important in research fields such as laser-driven inertial-confinement fusion (ICF), high-energy-density physics, and laboratory astrophysics [1][2][3] . In ICF experiments, high-resolution X-ray monochromatic imaging of the hot spot in the late stages of a pellet implosion is a necessary diagnostic method for studying important physical issues, such as the shape of the hot spot, the temperature distribution, and fuel mixing [4,5] .…”