Development of solid-state amplifier for accelerator project based on the concept of standardization

Abstract

Institute of Modern Physics (IMP), Chinese Academy of Sciences, is the first domestic institute that widely applied solid-state power amplifier (SSPA) to linear accelerator project from the C-ADS project started since 2011. Until now, the same design has already been considered for two large-scale scientific facilities in Guangdong Province of southeast China, China initiative Accelerator Driven System and High Intensity Heavy-ion Accelerator Facility. In a recent decade of accelerator project construction, a large amount of valuable experience in solid-state power source design build and operation was accumulated with the operation and upgrade of several projects. Furthermore, following the successful development of the IMP SSPA, a new “standardization” design concept was put forward after many modifications and improvements, which means all designs meet the stringent system requirements: high performance, low cost, high scalability, high reliability, and ease of maintenance need. The new design and technology can be developed for this accelerator solution, such as the high-performance power amplifier, “hot swap” technology, and special combiners, which are all new methods for long-term stable operation and maintenance on-site, especially the processing failure without rf power interrupting. This paper will detail the development of “standardization” design and its technical characteristics.