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Design of a high-bunch-charge 112-MHz superconducting RF photoemission electron source

  • T. Xin
  • , J. C. Brutus
  • , Sergey A. Belomestnykh
  • , I. Ben-Zvi
  • , C. H. Boulware
  • , T. L. Grimm
  • , T. Hayes
  • , Vladimir N. Litvinenko
  • , K. Mernick
  • , G. Narayan
  • , P. Orfin
  • , I. Pinayev
  • , T. Rao
  • , F. Severino
  • , J. Skaritka
  • , K. Smith
  • , R. Than
  • , J. Tuozzolo
  • , E. Wang
  • , B. Xiao
  • H. Xie, A. Zaltsman
  • Brookhaven National Laboratory
  • Stony Brook University
  • Fermi National Accelerator Laboratory
  • Niowave Inc.
  • Peking University

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

High-bunch-charge photoemission electron-sources operating in a continuous wave (CW) mode are required for many advanced applications of particle accelerators, such as electron coolers for hadron beams, electron-ion colliders, and free-electron lasers. Superconducting RF (SRF) has several advantages over other electron-gun technologies in CW mode as it offers higher acceleration rate and potentially can generate higher bunch charges and average beam currents. A 112 MHz SRF electron photoinjector (gun) was developed at Brookhaven National Laboratory to produce high-brightness and high-bunch-charge bunches for the coherent electron cooling proof-of-principle experiment. The gun utilizes a quarter-wave resonator geometry for assuring beam dynamics and uses high quantum efficiency multi-alkali photocathodes for generating electrons.

Original languageEnglish
Article number093303
JournalReview of Scientific Instruments
Volume87
Issue number9
DOIs
StatePublished - Sep 1 2016

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