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X-ray transmission measurements of high-temperature Al plasma by using Z-pinch dynamic hohlraum on 10-MA facility

Daoyuan ZhangChina Academy of Engineering Physics Institute of Fluid PhysicsGuanqiong WangInstitute of Applied Physics and Computational MathematicsHongchun CaiChina Academy of Engineering Physics Institute of Fluid PhysicsXiuwen ZhouChina Academy of Engineering PhysicsQiang XuChina Academy of Engineering PhysicsJue ZhangChina Academy of Engineering PhysicsXianbin HuangChina Academy of Engineering Physics Institute of Fluid PhysicsSiqun ZhangChina Academy of Engineering PhysicsXiaodong RenChina Academy of Engineering Physics Institute of Fluid PhysicsShaotong ZhouChina Academy of Engineering Physics Institute of Fluid PhysicsXiyu LuoChina Academy of Engineering Physics Institute of Fluid PhysicsYulong ZhouJi CeChina Academy of Engineering PhysicsYong LiChina Academy of Engineering Physics Institute of Fluid Physics肖德龙Institute of Applied Physics and Computational MathematicsQiang YiChina Academy of Engineering Physics Institute of Nuclear Physics and ChemistryFan YeChina Institute of Nuclear Physics and Chemistry严小松 Yan XiaosongChina Academy of Engineering PhysicsRuihua YangChina Institute of Nuclear Physics and Chemistry

2026

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ABI

Annotatsiya

Abstract Measurements of X-ray transmission in a high-temperature Al plasma over the 1.4–2.1 keV photon energy range are reported, which is driven by axial X-ray radiation from Z-pinch–driven dynamic hohlraum on 10-MA facility in China. Two identical bent convex cylindrical KAP crystal spectrometers are deployed at ±8° along two directions, enabling simultaneous acquisition of the absorption spectrum and the radiation source spectrum from a “half-moon” target within a single shot. The X-ray transmission is subsequently obtained by taking the ratio of these two spectra. By comparing the experimental transmission with calculated results, the radiatively heated Al plasma is inferred to reach a temperature of ~122 eV and an electron density of ~1.1×10 22 cm -3 . In addition, a time-resolved diagnostic system based on an elliptical concave KAP crystal spectrometer with a temporal resolution of 1.3 ns has been developed to measure the X-ray spectra of the sample plasma at different times. Compared with time-integrated measurements, the signal-to-noise ratio is significantly improved, enabling the observation of Al plasma spectra at temperature below 100 eV.

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Identifikatorlar

DOI: 10.1088/1361-6587/aeb3b6

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