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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
SSRF Helps on the COVID-19 Structure Determination to Understand the Infection Mechanism and Drugs R&D

04 07 , 2020
Synchrotron Big Data Science

The Big Data Science Center at SSRF, Zhangjiang Lab led by Prof. Alessandro Sepe has published on the international high-impact peer-reviewed scientific journal Small a timely and comprehensive Review on the state-of-the-art of the Synchrotron Big Data Science. The Big Data Science Center at SSRF, Zhangjiang Lab led by Prof. Alessandro Sepe has published on the international high-impact peer-reviewed scientific journal Small a timely and comprehensive Review on the state-of-the-art of the Synchrotron Big Data Science.
　　Vision of the Synchrotron Radiation facility as the core of a “Superfacility”
　　The Review focuses on the Big Data deluge issue, which poses a serious challenge worldwide to the scientific future of all the Synchrotron, Neutron...

05 08 , 2019
High Dislocation Density–induced Large Ductility in Deformed and Partitioned Steels

A wide variety of industrial applications require materials with high strength and ductility. Unfortunately, the strategies for increasing material strength, such as processing to create line defects (dislocations), tend to decrease ductility. We developed a strategy to circumvent this in inexpensive, medium Mn steel. Cold rolling followed by low-temperature tempering developed steel with metastable austenite grains embedded in a highly dislocated martensite matrix. A wide variety of industrial applications require materials with high strength and ductility. Unfortunately, the strategies for increasing material strength, such as processing to create line defects (dislocations), tend to decrease ductility. We developed a strategy to circumvent this in inexpensive, medium Mn steel. Cold rolling followed by low-temperature tempering developed steel with metastable austenite grains embedded in a highly dislocated martensite matrix. This deformed and partitio...

09 28 , 2017
Electric-field Control of Tri-state Phase Transformation with a Selective Dual-ion Switch

Materials can be transformed from one crystalline phase to another by using an electric field to control ion transfer, in a process that can be harnessed in applications such as batteries, smart windows and fuel cells. Increasing the number of transferrable ion species and of accessible crystalline phases could in principle greatly enrich material functionality.
　　Materials can be transformed from one crystalline phase to another by using an electric field to control ion transfer, in a process that can be harnessed in applications such as batteries, smart windows and fuel cells. Increasing the number of transferrable ion species and of accessible crystalline phases could in principle greatly enrich material functionality. However, studies have so far focused mainly on the evolution and control of single ionic species (for example, oxygen, hydrogen...

07 07 , 2017

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