Microwave Properties of Superconductors
The principal reason for employing a superconducting linear electron accelerator is to increase the duty cycle from 10-3 to 10-4 of typical high-energy gradient, roomtemperature accelerators to unity without reduction of the energy gradient. The duty cycle is the fraction of the time that the electron beam is accelerated and is an important factor in the design of many nuclear experiments. The increased duty cycle is possible because the power loss in a superconducting accelerator structure is extremely small. Secondary reasons for employing such an accelerator, which follow from the unity duty cycle, are increased energy resolution and increased accelerated electron current.
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