RF Cavities Made Simple - 23 August 2005
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At the heart of the design for the linear collider is the technology of superconducting radiofrequency cavities. In a noontime lecture designed for experts and beginners alike, Fermilab engineer Ralph Pasquinelli demystified the basics of accelerating electrons and positrons at the ILC. From klystrons to cavities, duty cycles to costs per watt of electricity, Pasquinelli took listeners step by step through the intricacies of rf systems. Among the challenges ILC designers face, Pasquinelli said, is coping with "cultural noise," vibrations from sources such as nearby pumps, plumbing, passing trucks--and even earthquakes, all of which can throw beams out of alignment. "It's no easy task," Pasquinelli said. "I hope we are up to the challenge and we can all work together to make this happen."