Development of a Low Frequency Superconducting RF Electron Gun
Accelerators used in Nuclear Physics research (such as the International Linear Collider, Rare Isotope Accelerator, Spallation Neutron Sources, free electron lasers and advanced light sources) all need to be driven by an electron sources, which are used to generate intense electron beams that can be focused and injected for further energy gain. Superconducting radio frequency (SRF) technology offers new opportunities for generating high intensity, high-energy electron beams. This project will develop a low frequency SRF electron gun that has applications for nearly all high-energy electron accelerators. Phase I will develop the electromagnetic model and a preliminary accelerating structure design. The SRF electron gun will be fabricated and tested in Phase II. Phase II also will involve the cryomodule design, which would include a mechanical frequency tuner to lock the gun frequency to the accelerator. Commercial Applications and other Benefits as described by the awardee: By utilizing the benefits of superconductivity and lower operating frequencies, and applying them to electron source devices, large cost savings are foreseen. The technology should find used in the design and construction of upgrades to Jefferson Laboratory and the RHIC, as well as to free-electron lasers, advanced light sources, and energy recovery linacs. For homeland security, free-electron lasers could serve as useful tools in the detection of explosive and radioactive materials.
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