The reporter learned from the press conference of China's spallation neutron source engineering process appraisal and acceptance that the Chinese spallation neutron source built in Dongguan, Guangdong Province completed all construction tasks on schedule and with high quality, and passed the Chinese Academy of Sciences on the same day. Process identification and acceptance. After the completion of the Chinese spallation neutron source became China's first, the world's fourth pulse-type spallation neutron source, filling the gap in the domestic pulse neutron application field.
The Chinese spallation neutron originated in September 2011, with a construction period of 6.5 years and a total investment of about 2.3 billion yuan. This "state heavy weapon" for studying the microstructure of matter consists of a variety of sophisticated equipment, in which the acceleration of protons to 0.9 times the speed of light is the core technology, and the RF power source system is the key to particle acceleration.
It is understood that many key equipments of the power source system have no domestic precedent, coupled with extremely high reliability requirements, many manufacturers are discouraged or stunned. The reporter learned from 23 of China Aerospace Science and Technology Second Hospital that Beijing Aerospace Guangtong Technology Co., Ltd., a subsidiary of the Institute, provided strong support for the localization of the engineering equipment.
It has been identified that nearly 50 sets of power source equipment originating from aerospace technology have all reached the target, and the "power heart" of the "super microscope" is about to start working.
In addition, China's spallation neutron source has achieved a series of major technological achievements in target stations and spectrometers through independent innovation and integrated innovation. The localization rate of equipment exceeds 90%, significantly improving China's magnets, power supplies and detectors. And the related industrial technology level and independent innovation capability in the fields of electronics and other fields have enabled China to achieve a major leap in the field of high-current proton accelerators and neutron scattering. The technology and comprehensive performance have entered the international similar devices.
The expert committee of engineering process appraisal and acceptance said that “the Chinese spallation neutron source debugging speed is faster than the foreign spallation neutron source. The highest neutron efficiency of the target station has reached the international advanced level.â€
The Chinese spallation neutron source was constructed by the Institute of High Energy Physics of the Chinese Academy of Sciences, and the unit was the Institute of Physics of the Chinese Academy of Sciences. It is like a "super microscope". "When completed, it will give full play to the role of three spectrometers in the fields of materials science, life science, condensed matter physics and chemistry, and provide an internationally advanced research platform for users. Chen Hesheng, academician of the Chinese spallation neutron source project and academician of the Chinese Academy of Sciences, said.
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