Researchers at Japan’s KEK High Energy Accelerator Research Organization have successfully produced a 52.3MV/m gradient field with a niobium superconducting accelerator cavity, reportedly reaching the theoretical accelerating gradient limit for current state of the art cavity shapes. High gradient cavities are one of the most vital components in designing next generation high energy accelerators, such as the International Linear Collider. (Superconductor Week, Oct. 24, 2005)
