Compact Accelerator Technology and Its Applications

Efficiency is crucial in a robust medical or industrial RF linear accelerator to minimize RF power costs. A high shunt impedance is essential for RF-to-beam efficiency, with cavity iris radius being a key parameter. However, a tradeoff is needed to avoid beam breakup in high current applications. To reduce costs, we developed a split block brazeless accelerating structure that utilizes knife edges for vacuum sealing, similar to the industry-standard conflat technology. This approach allows for rapid prototyping and cost reduction. Our report highlights progress made in implementing this method for low-energy accelerating structures, as well as providing a brief description of two types of linacs we are developing. As an example, in the final section, a linac for medical applications is introduced.