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TUCYA01 |
Development and application of ultrahigh vacuum S-band RF gun | |
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Funding: The work was partially supported by the National Key Research and Development Program of China No. 2022YFA1603400. Next generation of electron sources require higher electric field gradient and lower thermal emittance photocathodes. Recently, a series of high quantum efficiency, low thermal emittance and visible light driven advanced photocathodes have been developed, while they are sensitive to the vacuum condition. The previous studies on these advanced photocathodes are carried out at low gradient gun and the performances at the high gradient gun require comprehensive investigations. We developed an ultrahigh vacuum S-band RF gun to accommodate the vacuum sensitive photocathodes. The gun serves as a platform for high gradient studies on advanced photocathodes and is promising to advance the frontier of the electron beam brightness. This report will introduce the development of the ultrahigh vacuum S-band gun and the corresponding load lock system and advanced photocathode deposition system. |
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