Shanghai light source, the most popular large scie

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China's largest large-scale scientific device "Shanghai light source" has been completed in Shanghai

this is part of the experimental station next to the "Shanghai light source" high-performance electronic storage ring photographed on March 16

Xinhua, Shanghai, April 29 - on April 29, the largest large scientific device in China with a total investment of about 1.2 billion yuan, "Shanghai synchrotron radiation light source", was officially completed in Shanghai Zhangjiang High Tech Park and opened to users at home and abroad. Liu Yandong, member of the Political Bureau of the CPC Central Committee and state councilor, attended the completion ceremony and jointly started the completion device with Yu Zhengsheng, member of the Political Bureau of the CPC Central Committee and Secretary of the Shanghai municipal Party committee, Lu Yongxiang, vice chairman of the Standing Committee of the National People's Congress and President of the Chinese Academy of Sciences, and Xu Kuangdi, President of the Chinese Academy of engineering

if the hospital X-ray "takes pictures" of human bones and blood vessels, the super strong X-ray emitted by the "Shanghai synchrotron radiation light source" (hereinafter referred to as "Shanghai light source") will bring an "imaging revolution" to the cognition of the micro world - it will use synchrotron radiation light that is hundreds of millions of times brighter and millions of times stronger than ordinary X-ray machines to "image" substances, It provides a most advanced and irreplaceable tool for the research of many frontier disciplines

"if the X-ray discovered by roentgen at the end of the 19th century is regarded as a candle, then the synchrotron radiation light is the shining sun, which is enough to illuminate the entire micro world." Xuhongjie, general manager of Shanghai synchrotron radiation source engineering management department and director of Shanghai Institute of Applied Physics, Chinese Academy of Sciences, said

scientific research has long found that the electromagnetic radiation generated by electrons moving close to the speed of light moving in a curve in the magnetic field to change the direction of movement, that is, synchrotron radiation light source, can provide great convenience for mankind to carry out cutting-edge scientific research. Since the 1970s, more than 60 synchrotron radiation light source devices have been built and under construction around the world. In China, the first generation of synchrotron radiation light source is "Beijing light source", the second generation is Hefei National Synchrotron Radiation Laboratory, and the third generation is "Shanghai light source"

among the 20 third-generation synchrotron radiation light sources that have been built internationally, the energy of "Shanghai light source" ranks fourth in the world, second only to relevant facilities in Japan, the United States and Europe. It will also work with the third generation synchrotron radiation light sources in Taiwan, Japan, South Korea and India to form an Asian light source group comparable to the United States and Europe

compared with the second-generation Hefei synchrotron radiation light source, the electron beam emittance of the third-generation "Shanghai light source" is about 4 nm radian, and the difference between the two is nearly 40 times. The brightness obtained by the third-generation "Shanghai light source" is the key to the success or failure of polyurea construction. The difference is about 1600 times (about three orders of magnitude). "Shanghai light source" has the characteristics of high intensity, high brightness and high stability, which can be used to engage in frontier basic research in life science, material science, environmental science, medicine, pharmacy and other disciplines, as well as experimental research on the development and application of high technologies such as microelectronics, petroleum, medical diagnosis and so on

"Shanghai light source" experimental department director hejianhua said that just take life science as an example, life science has entered the post genome era, and protein science has become the commanding height of developed countries. However, more than 80% of the work of structural genomics, which focuses on the study of protein structure and function, needs to be carried out on the third generation synchrotron radiation source

open sharing is a remarkable feature of large scientific devices. "Shanghai light source" has the ability to build more than 60 beam lines. At that time, it can simultaneously provide hundreds of experimental stations with all kinds of synchrotron radiation from infrared light to hard X-ray, and the light supply time for users will exceed 5000 hours/year. At present, the installation and commissioning of the first batch of 7 beam lines and experimental stations have been completed, and the installation and commissioning of all more than 60 beam lines are planned to be completed in the next 15 years

so far, "Shanghai light source" has received 301 applications from 78 universities across the country, with a total of 2868 machine hours and 23000 hours. "I'm afraid that such a large-scale application will not be enough to include the machine hours of 'Shanghai light source' next year." He Zhanjun, director of the office of Shanghai Institute of physics, Chinese Academy of Sciences, said that in order to ensure the effective use of "Shanghai light source", at present, 7 beam lines have established expert evaluation groups of 8 to 10 people each, and users who have passed the evaluation of the evaluation group can carry out scientific research work at "Shanghai light source" free of charge

Xian Dingchang, academician of the Chinese Academy of Sciences, said 5 Work round itinerary: 2. Officially entering the lithium battery field, 0 mm "Shanghai light source" will make irreplaceable contributions to improving China's comprehensive scientific and technological strength. Moreover, this unique large platform research atmosphere will provide natural excellent conditions for academic exchanges between different disciplines

"Shanghai light source" broke ground on December 25th, 2004. The Chinese Academy of Sciences and the Shanghai Municipal People's Government jointly applied to the state for construction, and the Shanghai Institute of Applied Physics, Chinese Academy of Sciences, undertook the construction

background material: what is synchrotron radiation and synchrotron radiation light source

"Shanghai light source" will trigger a "chain reaction" in the research of new materials in China.

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