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Observation of Wakefield Suppression in a Photonic-Band-Gap Accelerator Structure

Journal Article · · Physical Review Letters
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Euclid Techlabs LLC., Bolingbrook, IL (United States)
+ Show Author Affiliations
We report experimental observation of higher order mode (HOM) wakefield suppression in a room-temperature traveling-wave photonic band gap (PBG) accelerating structure at 11.700 GHz. It has been long recognized that PBG structures have potential for reducing long-range wakefields in accelerators. The first ever demonstration of acceleration in a room-temperature PBG structure was conducted in 2005. Since then, the importance of PBG accelerator research has been recognized by many institutions. However, the full experimental characterization of the wakefield spectrum and demonstration of wakefield suppression when the accelerating structure is excited by an electron beam has not been performed to date. We conducted an experiment at the Argonne Wakefield Accelerator (AWA) test facility and observed wakefields excited by a single high charge electron bunch when it passes through a PBG accelerator structure. Lastly, excellent HOM suppression properties of the PBG accelerator were demonstrated in the beam test.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1255074
Alternate ID(s):
OSTI ID: 1237787
OSTI ID: 1390800
Report Number(s):
LA-UR--15-26913
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 116; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Fabrication and cold test of photonic band gap resonators and accelerator structures journal September 2005
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Cited By (3)

Development and high-power testing of an X -band dielectric-loaded power extractor journal January 2020
Generation of High-Power, Reversed-Cherenkov Wakefield Radiation in a Metamaterial Structure journal January 2019
Subterahertz Photonic Crystal Klystron Amplifier journal December 2019

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