Speaker
Description
Achieving high accelerating gradient and the benefit of compactness, improved transport, and high brightness beams is limited by the onset of rf induced breakdown and reduced rf to beam efficiency. The operation of normal conducting accelerators at cryogenic temperatures provides a pathway to addressing both of these principle challenges by increasing material strength, reducing susceptibility to breakdown, improving rf to beam efficiency and reducing pulsed/average thermal effects in the accelerating structure. The benefits of cryogenic operation can be achieved with a closed-cycle cryocooler or immersion in cryogenic fluids. Operation in a liquid nitrogen environment provides access to commercial solutions, while capturing the majority of the benefits of cryogenic operation. In this talk, we will provide an overview of the underlying mechanisms and benefits of cryogenic operation and highlight recent results in the development of compact liquid-nitrogen-cooled high-gradient linacs.
