Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses
Radio-frequency (rf) photoemission electron guns operating at higher accelerating gradients offer a pathway to produce brighter electron bunches. Brighter beams are expected to revolutionize many areas of science: they could form the backbone of next-generation compact x-ray free-electron lasers or...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-08-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.25.083402 |
| _version_ | 1798036839340179456 |
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| author | W. H. Tan S. Antipov D. S. Doran G. Ha C. Jing E. Knight S. Kuzikov W. Liu X. Lu P. Piot J. G. Power J. Shao C. Whiteford E. E. Wisniewski |
| author_facet | W. H. Tan S. Antipov D. S. Doran G. Ha C. Jing E. Knight S. Kuzikov W. Liu X. Lu P. Piot J. G. Power J. Shao C. Whiteford E. E. Wisniewski |
| author_sort | W. H. Tan |
| collection | DOAJ |
| description | Radio-frequency (rf) photoemission electron guns operating at higher accelerating gradients offer a pathway to produce brighter electron bunches. Brighter beams are expected to revolutionize many areas of science: they could form the backbone of next-generation compact x-ray free-electron lasers or provide coherent ultrafast quantum electron probes. We report on the experimental demonstration of an rf photoemission electron source supporting an accelerating field close to 400 MV/m at the photocathode surface without major rf breakdown or significant dark current over a 3-week experimental run. This unprecedented gradient was achieved by operating the gun in a new regime with short rf pulses, ∼9 ns X-band (11.7 GHz). The demonstrated paradigm provides a viable path to form relativistic electron beams with unprecedented brightness. |
| first_indexed | 2024-04-11T21:18:31Z |
| format | Article |
| id | doaj.art-3f075f9cadfa49478f64b9ddf4f068d2 |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-04-11T21:18:31Z |
| publishDate | 2022-08-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-3f075f9cadfa49478f64b9ddf4f068d22022-12-22T04:02:45ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882022-08-0125808340210.1103/PhysRevAccelBeams.25.083402Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulsesW. H. TanS. AntipovD. S. DoranG. HaC. JingE. KnightS. KuzikovW. LiuX. LuP. PiotJ. G. PowerJ. ShaoC. WhitefordE. E. WisniewskiRadio-frequency (rf) photoemission electron guns operating at higher accelerating gradients offer a pathway to produce brighter electron bunches. Brighter beams are expected to revolutionize many areas of science: they could form the backbone of next-generation compact x-ray free-electron lasers or provide coherent ultrafast quantum electron probes. We report on the experimental demonstration of an rf photoemission electron source supporting an accelerating field close to 400 MV/m at the photocathode surface without major rf breakdown or significant dark current over a 3-week experimental run. This unprecedented gradient was achieved by operating the gun in a new regime with short rf pulses, ∼9 ns X-band (11.7 GHz). The demonstrated paradigm provides a viable path to form relativistic electron beams with unprecedented brightness.http://doi.org/10.1103/PhysRevAccelBeams.25.083402 |
| spellingShingle | W. H. Tan S. Antipov D. S. Doran G. Ha C. Jing E. Knight S. Kuzikov W. Liu X. Lu P. Piot J. G. Power J. Shao C. Whiteford E. E. Wisniewski Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses Physical Review Accelerators and Beams |
| title | Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses |
| title_full | Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses |
| title_fullStr | Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses |
| title_full_unstemmed | Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses |
| title_short | Demonstration of sub-GV/m accelerating field in a photoemission electron gun powered by nanosecond X-band radio-frequency pulses |
| title_sort | demonstration of sub gv m accelerating field in a photoemission electron gun powered by nanosecond x band radio frequency pulses |
| url | http://doi.org/10.1103/PhysRevAccelBeams.25.083402 |
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