Beijing, June 6 (Reporter Sun Zifa) The Institute of High Energy Physics of the Chinese Academy of Sciences (Institute of High Energy of the Chinese Academy of Sciences) announced on the 8th that the institute is promoting the construction of a major national scientific and technological infrastructure "high-energy synchrotron radiation light source" (HEPS) has made another important progress, and its linear accelerator has recently passed the process acceptance after successfully accelerating the first beam of electrons at full energy in mid-March this year.
Pan Weimin, chief commander of the "high-energy synchrotron radiation light source" project and researcher of the Institute of High Energy of the Chinese Academy of Sciences, said that the "high-energy synchrotron radiation light source" linear accelerator is the source and first-level accelerator of electrons, and the construction team has planned in advance and organized carefully, and has basically completed the construction task as planned. In order to better optimize the beam parameters of the linear accelerator, improve the efficiency of the construction and beam regulation of the intensifier and storage ring, and better complete the construction task of the large scientific device of "high-energy synchrotron radiation light source", the engineering headquarters strengthens the process management and organizes the special process testing and acceptance of the linear accelerator. Previously, the linear accelerator of "high-energy synchrotron radiation light source" has completed process testing and formed a detailed test outline and test report.
At the important node of this process acceptance, the acceptance team listened to the report of Li Jingyi, the person in charge of the linear accelerator of "high-energy synchrotron radiation light source", on the construction of linear accelerator design, equipment development, installation, beam regulation, etc., and the report of Chen Huaibi, leader of the process testing team, on the process test. After discussion and review, the acceptance group unanimously approved the process test results, all indicators reached or exceeded the approved acceptance indicators, the overall performance reached the international advanced level of similar equipment, and agreed that the "high-energy synchrotron radiation light source" linear accelerator passed the process acceptance.
HEPS linear accelerator tunnel. Photo courtesy of Institute of High Energy of the Chinese Academy of Sciences
Experts of the acceptance group believe that the "high-energy synchrotron radiation light source" linear accelerator team has completed the construction task with high quality, and through independent innovation and integrated innovation, it has achieved a series of achievements such as the independent development of the upper-layer beam modulation software platform and the physical-oriented beam modulation software, the independent development of cathograte components and high-power solid-state modulators based on insulated-gate bipolar transistors, the high-gradient acceleration structure of internal water cooling, arc-shaped cavity and symmetrical power coupler, so as to ensure the high energy stability of the linear accelerator and improve the acceleration efficiency.
It is understood that as one of the large scientific installations built in Beijing Huairou Science City, the "high-energy synchrotron radiation light source" was approved by the National Development and Reform Commission, and the high-energy institute of the Chinese Academy of Sciences undertook the construction, and the construction was started in June 2019, with a planned construction period of 6.6 years. After completion, the "high-energy synchrotron radiation light source" will be one of the world's brightest fourth-generation synchrotron radiation light sources, and will also be China's first high-energy synchrotron radiation light source, which will complement the energy region of China's existing light source, and is of great significance to enhance China's national development strategy and the original innovation ability in the field of cutting-edge basic science and high technology. (End)