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Title: Overview of CW electron guns and LCLS-II RF gun performance

Journal Article · · Frontiers in Physics
 [1];  [1];  [1];  [2]
  1. SLAC National Accelerator Laboratory, Menlo Park, CA (United States)
  2. Helmholtz-Zentrum Dresden Rossendorf, Dresden (Germany)

Various continuous-wave (CW) electron gun technologies are reviewed, including DC, superconducting radio frequency RF (SRF), hybrid DC-SRF and normal-conducting RF. Also, the SLAC Linac Coherent Light Source II (LCLS-II) normal-conducting RF gun and injector are described, and the performance to date, including the bunch emittance achieved and the dark current observed, is presented.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1960001
Journal Information:
Frontiers in Physics, Vol. 11; ISSN 2296-424X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English

References (14)

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Impact of the spatial laser distribution on photocathode gun operation journal September 2012
High-brightness beam tests of the very high frequency gun at the Advanced Photo-injector EXperiment test facility at the Lawrence Berkeley National Laboratory journal March 2019
End-point energy measurements of field emission current in a continuous-wave normal-conducting rf injector journal March 2011
First lasing and operation of an ångstrom-wavelength free-electron laser journal August 2010
High-Brightness Continuous-Wave Electron Beams from Superconducting Radio-Frequency Photoemission Gun journal June 2020
Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source journal February 2016
First experience with He conditioning of a superconducting rf photoinjector journal September 2022
High voltage threshold for stable operation in a dc electron gun journal July 2016
Successful user operation of a superconducting radio-frequency photoelectron gun with Mg cathodes journal March 2021
A proposed superconducting photoemission source of high brightness
  • Chaloupka, H.; Heinrichs, H.; Michalke, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 285, Issue 1-2 https://doi.org/10.1016/0168-9002(89)90474-9
journal December 1989
Emittance compensation schemes for a superconducting rf injector journal September 2018
Exact cancellation of emittance growth due to coupled transverse dynamics in solenoids and rf couplers journal January 2018

Figures / Tables (2)


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