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Articles by Runze Qi
A Study on the Motion Behavior of Metallic Contaminant Particles in Transformer Insulation Oil under Multiphysical Fields
1. Introduction The safe and reliable operation of large power transformers, the cornerstone of the UHV power grid, is crucial to ensuring the overall safety of the entire power grid [1]. At present, large power transformers are generally oil-immersed structures, and their interior is generally combined oil–paper insulation. The insulating medium includes insulating oil, paper, cardboard, and other solid insulating components.
Study of Optical Performance and Structure of Yb/Al (1.5 wt.% Si) and Yb/Al (Pure) Multilayers Designed for the 73.6 nm Range
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Study of Optical Performance and Structure of Yb/Al(1.5wt%Si) and Yb/Al(pure) Multilayers Designed for the 73.6 nm Range
Preprint Article Version 1 This version is not peer-reviewed Version 1 : Received: 26 April 2024 / Approved: 28 April 2024 / Online: 28 April 2024 (05:18:38 CEST) Lai, B.; Qi, R.; Zhang, Z.; Wang, Z. Study of Optical Performance and Structure of Yb/Al(1.5wt%Si) and Yb/Al(pure) Multilayers Designed for the 73.6 nm Range. Preprints 2024, 2024041805. https://doi.org/10.20944/preprints202404.1805.v1 Lai, B.; Qi, R.; Zhang, Z.; Wang, Z.
Cr/C multilayer growth on a heavy metal layer for upgrading of high efficiency tender x-ray gratings
Abstract To increase efficiency of single layer gratings used in the tender x-ray range, a high reflectance multilayer can be directly grown on single layer gratings. Multilayer growth quality was studied by depositing the Cr/C multilayer on a Pt single layer using flat substrates. Their structure quality and adhesion were characterized by atomic force microscopy (AFM), grazing incidence x-ray reflectivity (GIXRR), x-ray scattering (XRS), x-ray diffraction (XRD), and layer adhesion measurement.
Cr/C lamellar multilayer grating in conical diffraction mounting for beam splitter used in X-ray free-electron lasers
Author Affiliations Yufei Feng,1,† LiangLiang Du,2,† Qiushi Huang,1,6 Zhengkun Liu,3 Andrey Sokolov,4 Runze Qi,1 Xiaowei Yang,5 Zhong Zhang,1 and Zhanshan Wang1,7 1MOE Key Laboratory of Advanced Microstructural Materials, Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China 2Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621999, China 3National Synchrotron Radiation Laboratory,...
Thermal and temporal stability of the nitridated Ru/B4C multilayer for high-flux monochromator application
Abstract A nitridated ${\rm Ru}/{{\rm B}_4}{\rm C}$ multilayer with period of 3.0 nm and 80 bilayers were fabricated to study thermal and temporal stability. The multilayer was annealed from room temperature to 490°C, and the in situ X-ray measurements showed that the reflectivity remains mostly unchanged up to 300°C. An essential drop of the reflectivity occurred at 490°C with significantly increased interface roughness.
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