Beijing News (Reporter Zhang Lu) Which major national scientific and technological infrastructure are laid out in Beijing? At Beijing Science and Technology Week, the circular "High Energy Synchronous Radiation Light Source " device attracted enthusiastic attention from the audience as soon as it was unveiled. A reporter from the Beijing News learned that the device is expected to start construction in in Huairou Science City in the middle of this year. After completion, it will be able to perform a "physical examination" of engineering materials to ensure its performance.
"High Energy Synchronous Radiation Light Source" device sand table model. Photo by Zhang Lu, reporter of Beijing News
National major scientific and technological infrastructure, also known as large scientific device , is a large and complex scientific research device or system coordinated by the state and open to the public. "High-energy synchronous radiation light source" is a large scientific device that will be given priority during the 13th Five-Year Plan period.
"High Energy Synchronous Radiation Light Source" device is expected to start construction in the northern core area of Huairou Science City in mid-this year. It will be accepted and put into operation by the end of 2025. It will be China's first high-energy synchronous radiation light source and will also be the brightest fourth-generation synchronous radiation light source in the world. What does
synchronous radiation light source do? Zhang Bingbing, assistant researcher at the Institute of High Energy Physics, Chinese Academy of Sciences, said that high energy synchronous radiation light source is actually X-ray . Ordinary X-rays can diagnose the human body. High energy X-rays are used to diagnose materials such as machines and thick steel plates to study their defect mechanisms. "In the field of engineering materials, most of them are thick materials, such as the landing gear of an aircraft, and its defects directly determine its life and performance." He said that "high-energy synchronous radiation light source" can characterize the full life cycle of engineering materials, explore its performance, and will be widely used in my country's advanced materials, , aerospace, environmental protection, medicine, bioengineering , micro-processing and other fields.
From the sand table model, the entire building looks like a magnifying glass, meaning it is a powerful tool to explore the micro world of . The building mainly includes accelerators, beam lines and experimental stations. Zhang Bingbing said that the high-throughput X-rays generated in the ring accelerator pass through the "channel" to the experimental station. After the installation is completed, it will accommodate up to 90 experimental stations, and "physical examination" can be performed for different samples. It is reported that the design life of the device is 30 years, and it will continue to be renovated after completion, and it is expected to be 50 years.
Seeing the words "radiation", many viewers couldn't help asking whether this light source is harmful to the human body. Zhang Bingbing introduced that high-energy synchronous radiation itself is an ionizing radiation, which is harmful if it hits a person directly. However, there are many measures to shield radiation during the construction of the installation. Each experimental station will use lead shielding houses and concrete to prevent radiation. Therefore, when working experiments in the synchronous radiation light source device and visiting synchronous radiation according to the guidance of staff, there is no need to worry about radiation issues at all.
According to statistics from the Beijing Municipal Science and Technology Commission, at present, there are 19 major national scientific and technological infrastructures operating, under construction and planning in Beijing.
Beijing News reporter Zhang Lu Editor Li Lixia
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