Advances in Superconducting RF Technology for the ILC

Superconducting radio frequency (RF) is an enabling technology for the International Linear Collider (ILC); the ILC Global Design Effort has led R&D programs to push the limits of superconducting RF cavities and associated technologies. This report summarizes the progress in development for superconducting RF cavity technology during the Technical Design Phase for the ILC since 2007.