High-Brightness Continuous-Wave Electron Beams from Superconducting Radio-Frequency Photoemission 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 CsK2Sb 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.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2020
- DOI:
- 10.1103/PhysRevLett.124.244801
- arXiv:
- arXiv:2003.05920
- Bibcode:
- 2020PhRvL.124x4801P
- Keywords:
-
- Physics - Accelerator Physics
- E-Print:
- Phys. Rev. Lett. 124, 244801 (2020)