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Title: Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4941836· OSTI ID:1477251
ORCiD logo [1];  [1];  [1];  [2]; ORCiD logo [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Institute of High Energy Physics, Beijing (China)
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A high repetition rate, MHz-class, high-brightness electron source is a key element in future high-repetition-rate x-ray free electron laser-based light sources. The VHF-gun, a novel low frequency radio-frequency gun, is the Lawrence Berkeley National Laboratory (LBNL) response to that need. The gun design is based on a normal conducting, single cell cavity resonating at 186 MHz in the VHF band and capable of continuous wave operation while still delivering the high accelerating fields at the cathode required for the high brightness performance. The VHF-gun was fabricated and successfully commissioned in the framework of the Advanced Photo-injector EXperiment, an injector built at LBNL to demonstrate the capability of the gun to deliver the required beam quality. In conclusion, the basis for the selection of the VHF-gun technology, novel design features, and fabrication techniques are described.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
AC02-05CH11231; LDRD
OSTI ID:
1477251
Alternate ID(s):
OSTI ID: 1238186
Journal Information:
Review of Scientific Instruments, Vol. 87, Issue 2; Related Information: © 2016 AIP Publishing LLC.; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

References (10)

BXERL photo-injector based on a 217 MHz normal conducting RF gun journal September 2011
Dark current studies on a normal-conducting high-brightness very-high-frequency electron gun operating in continuous wave mode journal January 2015
First operation of cesium telluride photocathodes in the TTF injector RF gun
  • Sertore, D.; Schreiber, S.; Floettmann, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 445, Issue 1-3 https://doi.org/10.1016/S0168-9002(00)00095-4
journal May 2000
Design Studies for a High-Repetition-Rate FEL Facility at LBNL journal November 2007
Design Studies for a VUV–Soft X-ray Free-Electron Laser Array journal October 2009
Cathode R&D for future light sources
  • Dowell, D. H.; Bazarov, I.; Dunham, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 622, Issue 3 https://doi.org/10.1016/j.nima.2010.03.104
journal October 2010
A CW normal-conductive RF gun for free electron laser and energy recovery linac applications
  • Baptiste, K.; Corlett, J.; Kwiatkowski, S.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 599, Issue 1 https://doi.org/10.1016/j.nima.2008.10.021
journal February 2009
Advanced photoinjector experiment photogun commissioning results journal October 2012
Cesium telluride cathodes for the next generation of high-average current high-brightness photoinjectors journal July 2015
Schemes and challenges for electron injectors operating in high repetition rate X-ray FELs journal September 2011

Cited By (4)

A cryogenically cooled high voltage DC photoemission electron source journal August 2018
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
Two-pass two-way acceleration in a superconducting continuous wave linac to drive low jitter x-ray free electron lasers journal November 2019
GeV-Class Two-Fold CW Linac Driven by an Arc-Compressor journal October 2019

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