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Novel discovery on Al(III) Doping of ε-Fe2O3 in the Ancient High-iron Black-brown Glaze

Based on siliceous clay and calcareous wood ash, the world’s first high-fired glazes were made in China, the technology of which was at its zenith by the Song Dynasty (960-1279) including blackware glazes with single-phase, micron-scale ε-Fe2O3 films identified on their surfaces. However, modern synthetic methods are still difficult to synthesize and reproduce the effects on a larger scale without other iron oxide polymorph impurities.

10 23 , 2023
A Novel Approach for Generating Coherent and Ultrashort Soft X-ray Pulses

Generation of intense, tunable, and fully coherent pulses in the X-ray regime has been a long-standing challenge for laser technologies. The urgent need for intense X-ray light sources has prompted the development of X-ray free-electron lasers (FELs). However, most of the presently existing X-ray FEL facilities are faced with limited temporal coherence and large shot-to-shot fluctuations.

08 08 , 2022
New beamlines in trial operation at SSRF

In December 27, four beamlines at the Phase-II project at Shanghai Synchrotron Radiation Facility (SSRF) passed the process test and stared the trail operation, which signified that a total of 11 beamlines and 20 experimental stations have been constructed and put in operation at SSRF.

12 31 , 2021
Shanghai scientists make breakthrough in X-ray research

In 2021, breakthroughs have been made continuously for debugging of Shanghai soft X-ray free electron laser, and has pushed the shortest wavelength of free electron laser of China to 2nm, and firstly realized full band coverage of the "water window" among the 3 soft X-ray free electron laser facilities around the world.

05 17 , 2021
Scientists Propose a Novel Self-modulation Scheme in Seeded Free-Electron Lasers

Seeded free-electron lasers (FELs), which use frequency up-conversion of an external seed laser to improve temporal coherence, are regarded ideal for supplying stable, fully coherent, soft X-ray pulses. However, the requirement for an external seed laser with sufficient peak power to modulate the electron beam can hardly be met by the present state-of-the-art laser systems, it remains challenging for seeded FELs to operate at high repetition rate, e.g., MHz repetition rate.

03 10 , 2021
Scientists Reveal New Tools in Single-cell Infrared Microspectroscopy Based on Synchrotron Radiation

Single-cell technologies are becoming hot topics and key directions of biomedical research due to their abilities to answer the basic question of cellular functional heterogeneity and to interpret the molecular basis of various chronic diseases as well as aging. Among the single cell techniques, single-cell infrared spectroscopy obtains growing attention because of its advantages in simultaneously identifying the characteristics of intracellular metabolites.

01 05 , 2021

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