△Cryogenic Testing Conducted at KEK

 

Korea University Sejong Campus and KAT Co., a subsidiary of KIS Wire, have been actively collaborating on the development of superconducting accelerator cavities, contributing to advancements in domestic accelerator technology and the training of specialized personnel.

 

The two institutions jointly developed a 1.3GHz superconducting accelerator cavity, which received international certification after passing performance tests at the cryogenic facility of the High Energy Accelerator Research Organization (KEK) in Japan. The cavity demonstrated outstanding results, achieving an accelerating gradient of 37MV/m and a quality factor of 1.5×10¹⁰.

 

The newly developed 1.3GHz superconducting accelerator cavity is a key component for electron-positron colliders and fourth-generation linear synchrotron radiant accelerators (free-electron lasers), which is currently in operation in leading research facilities in the United States, Japan, and Germany. The collaboration between the two institutions and the validation of their work at KEK marks a significant milestone in the field.

 

The research findings will be presented this April at the international superconducting workshop TTC2025(Tesla Technology Collaboration), set to take place in Daejeon. This presentation is expected to further strengthen international cooperation in the design and testing of superconducting infrastructure in Korea.

△Domestically Developed Superconducting Accelerator Cavity Installed in KEK’s Cryogenic Testing Facility

 

The Sejong Campus is leveraging this achievement to enhance its competitiveness in accelerator technology while accelerating the training of skilled professionals through research and business cooperation. In February 2026, the campus will host the ‘7th Asian Global School on Superconductivity Accelerators, with participation from approximately 50 graduate students and 15 experts from eight Asian countries, including Korea, Japan, China, Thailand, Taiwan, India, Russia, and Malaysia.

 

Professor Kim Eunsan of Department of Accelerator Science stated, “We will continue to cultivate highly competitive professionals through collaboration with domestic and international research institutions and industries.” CEO Yoo Sungtaek of KAT Co. added, “By combining the university’s outstanding research capabilities with the technological expertise of the industry, we will further advance accelerator development. We also aim to strengthen KAT’s global manufacturing capabilities and actively expand into international markets.”

 

Korea University Sejong Campus is the first institution in Korea to offer a Department of Accelerator Science as a regular graduate program. It also serves as the lead university for the Ministry of Science and ICT’s accelerator workforce training project, consistently producing highly skilled professionals in the fields of accelerators and beamlines.