1. High-Brightness Continuous-Wave Electron Beams from Superconducting Radio-Frequency Photoemission Gun
- Author
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Geetha Narayan, Kai Shih, Jean Clifford Brutus, Irina Petrushina, Joseph Tuozzolo, James Jamilkowski, Patrick Inacker, Kentaro Mihara, Matthew Paniccia, George Mahler, Jun Ma, Triveni Rao, Toby Miller, Yatming Than, Igor Pinayev, S. Belomestnykh, Zeynep Altinbas, T. L. Grimm, C. H. Boulware, Kevin Smith, Yichao Jing, Yuan Hui Wu, Tianmu Xin, Freddy Severino, John Skaritka, Thomas Roser, V. Soria, Ilan Ben-Zvi, L. Smart, Michael Mapes, Erdong Wang, Binping Xiao, Vladimir Litvinenko, A. Di Lieto, Gang Wang, and Dmitry Kayran more...
- Subjects
Physics ,Free electron model ,Brightness ,business.industry ,Superconducting radio frequency ,General Physics and Astronomy ,Electron ,Laser ,01 natural sciences ,Photocathode ,law.invention ,Optics ,law ,0103 physical sciences ,Physics::Accelerator Physics ,Continuous wave ,010306 general physics ,business ,Electron gun - Abstract
Continuous-wave photoinjectors operating at high accelerating gradients promise to revolutionize many areas of science and applications. They can establish the basis for a new generation of monochromatic x-ray free electron lasers, high-brightness hadron beams, or a new generation of microchip production. In this Letter we report on the record-performing superconducting rf electron gun with CsK_{2}Sb photocathode. The gun is generating high charge electron bunches (up to 10 nC/bunch) and low transverse emittances, while operating for months with a single photocathode. This achievement opens a new era in generating high-power beams with a very high average brightness. more...
- Published
- 2020
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