Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source
Abstract
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.
- Authors:
-
[1];
[1];
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Institute of High Energy Physics, Beijing (China)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- OSTI Identifier:
- 1477251
- Alternate Identifier(s):
- OSTI ID: 1238186
- Grant/Contract Number:
- AC02-05CH11231; LDRD
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Review of Scientific Instruments
- Additional Journal Information:
- Journal Volume: 87; Journal Issue: 2; Related Information: © 2016 AIP Publishing LLC.; Journal ID: ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Wells, R. P., Ghiorso, W., Staples, J., Huang, T. M., Sannibale, F., and Kramasz, T. D. Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source. United States: N. p., 2016.
Web. doi:10.1063/1.4941836.
Wells, R. P., Ghiorso, W., Staples, J., Huang, T. M., Sannibale, F., & Kramasz, T. D. Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source. United States. https://doi.org/10.1063/1.4941836
Wells, R. P., Ghiorso, W., Staples, J., Huang, T. M., Sannibale, F., and Kramasz, T. D. Wed .
"Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source". United States. https://doi.org/10.1063/1.4941836. https://www.osti.gov/servlets/purl/1477251.
@article{osti_1477251,
title = {Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source},
author = {Wells, R. P. and Ghiorso, W. and Staples, J. and Huang, T. M. and Sannibale, F. and Kramasz, T. D.},
abstractNote = {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.},
doi = {10.1063/1.4941836},
journal = {Review of Scientific Instruments},
number = 2,
volume = 87,
place = {United States},
year = {Wed Feb 17 00:00:00 EST 2016},
month = {Wed Feb 17 00:00:00 EST 2016}
}
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Works referencing / citing this record:
A cryogenically cooled high voltage DC photoemission electron source
journal, August 2018
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- Review of Scientific Instruments, Vol. 89, Issue 8
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
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- Review of Scientific Instruments, Vol. 90, Issue 3
Two-pass two-way acceleration in a superconducting continuous wave linac to drive low jitter x-ray free electron lasers
journal, November 2019
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GeV-Class Two-Fold CW Linac Driven by an Arc-Compressor
journal, October 2019
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- Instruments, Vol. 3, Issue 4