The Spallation Neutron Source accelerator is the highest power proton accelerator in the world, operating with over 1.4 MW with high reliability. Commissioned in 2006, it took thirteen years to achieve the 1.4 MW design goal of the facility and required overcoming tremendous technological challenges. The SNS path to high power has significantly influenced the outlook for future of high-power accelerators. This talk will describe the innovative journey to high power and the lessons learned along the way, and will close with a preview of SNS’s future beyond 1.4 MW.

The World-wide accelerator-based isotope production for research as well as medical and industrial applications is growing. Aside the use of isotopes in fundamental research, their medical use is widely known, and isotopes enjoy growing importance in many fields. Isotopes are used in inter disciplinary research as tracers to examine the trace flow of nutrients and pollutants in the environment for instance. Isotopes are also used to characterize newly designed materials and the behavior of nano-structured materials that play a key role in modern electronics devices. The production and investigation of short lived isotopes, also known as rare-isotopes, is mainly based on accelerators using different nuclear reactions. This talk gives an overview of the accelerators used for isotope production, the relevant performance parameters, and new trends that drive the technology development and physics understanding of these accelerators.

Sustainability of accelerators construction and operation is becoming a driver for new accelerators at the high-energy and beam power frontier. The ICFA Panel on Sustainable Accelerators and Colliders assesses and promotes developments on energy efficient and sustainable accelerator concepts, technologies, and strategies for operation, and assess and promote the use of accelerators for the development of Carbon-neutral energy sources. This talk gives an overview of the world-wide efforts, notable accomplishments to date, and trends that will shape the construction and operation of future large accelerators.

Storage rings and free electron lasers use undulators to produce high-brilliant X-ray photon beams. In order to increase brilliance and photon energy tunability it is necessary to enhance the undulator magnetic peak field on axis by reducing its period without decreasing the electron beam stay clear. Undulator technologies aiming to reach this goal are presented.

We will review of the current state of the advanced photocathode material development and structures necessary for production of electron beams with high brightness, high charge, and electron spin polarization.

During last year a comprehensive R&D program on high-efficiency klystrons has been carried out in collaboration with industry. The first prototypes are being tested and experimental results are promising. The talk will describe the main results of this R&D focusing in the experimental ones.

The 4th generation synchrotron light sources and energy recovery linacs progress greatly in Japan. The first 4th generation synchrotron light source in Asia, NanoTerasu, has been constructed through a public-private regional partnership, whereas soon SPring-8 is to be upgraded. The energy recovery linac, which features not only high brightness but also sustainability as the cERL, and its related technology such as DC gun injectors have been developed, also. The talk will present an overview and future direction of synchrotron radiation light sources in Japan, with a particular focus on recent advances in NanoTerasu.

In the US high energy planning process more than 30 colliders were considered. This talk gives an overview of these colliders and emphasized the strength of the various approaches.