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High-Brightness Continuous-Wave Electron Beams from Superconducting Radio-Frequency Photoemission Gun

  • I. Petrushina
  • , V. N. Litvinenko
  • , Y. Jing
  • , J. Ma
  • , I. Pinayev
  • , K. Shih
  • , G. Wang
  • , Y. H. Wu
  • , Z. Altinbas
  • , J. C. Brutus
  • , S. Belomestnykh
  • , A. Di Lieto
  • , P. Inacker
  • , J. Jamilkowski
  • , G. Mahler
  • , M. Mapes
  • , T. Miller
  • , G. Narayan
  • , M. Paniccia
  • , T. Roser
  • F. Severino, J. Skaritka, L. Smart, K. Smith, V. Soria, Y. Than, J. Tuozzolo, E. Wang, B. Xiao, T. Xin, I. Ben-Zvi, C. Boulware, T. Grimm, K. Mihara, D. Kayran, T. Rao
  • Stony Brook University
  • Brookhaven National Laboratory
  • Fermi National Accelerator Laboratory
  • Niowave Inc.

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

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.

Original languageEnglish
Article number244801
JournalPhysical Review Letters
Volume124
Issue number24
DOIs
StatePublished - Jun 19 2020

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