Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Generation of High-Power, Reversed-Cherenkov Wakefield Radiation in a Metamaterial Structure

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [2];  [3];  [3];  [3];  [3];  [4]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); MIT
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Euclid Techlabs LLC, Solon, OH (United States)
+ Show Author Affiliations

Here, we present the first demonstration of high-power, reversed-Cherenkov wakefield radiation by electron bunches passing through a metamaterial structure. The structure supports a fundamental transverse magnetic mode with a negative group velocity leading to reversed-Cherenkov radiation, which was clearly verified in the experiments. Single 45 nC electron bunches of 65 MeV traversing the structure generated up to 25 MW in 2 ns pulses at 11.4 GHz, in excellent agreement with theory. Two bunches of 85 nC with appropriate temporal spacing generated up to 80 MW by coherent wakefield superposition, the highest rf power that metamaterial structures ever experienced without damage. These results demonstrate the unique features of metamaterial structures that are very attractive for future high-gradient wakefield accelerators, including two-beam and collinear accelerators. Advantages include the high shunt impedance for high-power generation and high-gradient acceleration, the simple and rugged structure, and a large parameter space for optimization.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Grant/Contract Number:
SC0015566; AC02-06CH11357
OSTI ID:
1593924
Alternate ID(s):
OSTI ID: 1559272
OSTI ID: 1489843
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 122; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (33)

RF Linear Accelerators book January 2008
Towards a plasma wake-field acceleration-based linear collider
  • Rosenzweig, J.; Barov, N.; Murokh, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 410, Issue 3 https://doi.org/10.1016/S0168-9002(98)00186-7
journal June 1998
Path to AWAKE: Evolution of the concept
  • Caldwell, A.; Adli, E.; Amorim, L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 829 https://doi.org/10.1016/j.nima.2015.12.050
journal September 2016
X-band accelerator structures: On going R&D at the INFN
  • Gatti, G.; Marcelli, A.; Spataro, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 829 https://doi.org/10.1016/j.nima.2016.02.061
journal September 2016
High gradient tests of metallic mm-wave accelerating structures
  • Dal Forno, Massimo; Dolgashev, Valery; Bowden, Gordon
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 864 https://doi.org/10.1016/j.nima.2017.05.014
journal August 2017
Electron acceleration through two successive electron beam driven wakefield acceleration stages
  • Jing, C.; Antipov, S.; Conde, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 898 https://doi.org/10.1016/j.nima.2018.05.007
journal August 2018
Short-pulse dielectric two-beam acceleration journal February 2012
Demonstration of a positron beam-driven hollow channel plasma wakefield accelerator journal June 2016
Observation of acceleration and deceleration in gigaelectron-volt-per-metre gradient dielectric wakefield accelerators journal September 2016
Observation of the reversed Cherenkov radiation journal March 2017
Wakefield generation in metamaterial-loaded waveguides journal August 2007
Observation of wakefield generation in left-handed band of metamaterial-loaded waveguide journal July 2008
High power long pulse microwave generation from a metamaterial structure with reverse symmetry journal February 2018
THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF $\epsilon$ AND μ journal April 1968
Photonic approach to making a material with a negative index of refraction journal January 2003
Observation of Narrow-Band Terahertz Coherent Cherenkov Radiation from a Cylindrical Dielectric-Lined Waveguide journal August 2009
Experimental Verification of Reversed Cherenkov Radiation in Left-Handed Metamaterial journal November 2009
Multi-GeV Electron Beams from Capillary-Discharge-Guided Subpetawatt Laser Pulses in the Self-Trapping Regime journal December 2014
Interaction of an Ultrarelativistic Electron Bunch Train with a W -Band Accelerating Structure: High Power and High Gradient journal February 2016
Observation of Wakefield Suppression in a Photonic-Band-Gap Accelerator Structure journal February 2016
Coherent Cherenkov-Cyclotron Radiation Excited by an Electron Beam in a Metamaterial Waveguide journal December 2016
Observation of High Transformer Ratio of Shaped Bunch Generated by an Emittance-Exchange Beam Line journal March 2018
Experimental Characterization of Electron-Beam-Driven Wakefield Modes in a Dielectric-Woodpile Cartesian Symmetric Structure journal April 2018
Experimental Demonstration of Wake-Field Effects in Dielectric Structures journal December 1988
Babinet Principle Applied to the Design of Metasurfaces and Metamaterials journal November 2004
Multi-GeV Energy Gain in a Plasma-Wakefield Accelerator journal July 2005
New local field quantity describing the high gradient limit of accelerating structures journal October 2009
High gradient limits due to single bunch beam breakup in a collinear dielectric wakefield accelerator journal September 2014
Modeling of the interaction of a volumetric metallic metamaterial structure with a relativistic electron beam journal August 2015
Dielectric laser accelerators journal December 2014
Demonstration of acceleration of relativistic electrons at a dielectric microstructure using femtosecond laser pulses journal January 2016
Path to AWAKE: Evolution of the concept text January 2016
Path to AWAKE: Evolution of the concept text January 2015

Cited By (2)

Linear theory of instabilities generated by an electron beam in a metamaterial-loaded waveguide journal March 2019
Development and high-power testing of an X -band dielectric-loaded power extractor journal January 2020

Similar Records

Generation of High-Power, Reversed-Cherenkov Wakefield Radiation in a Metamaterial Structure
Journal Article · Sun Jan 06 23:00:00 EST 2019 · Physical Review Letters · OSTI ID:1559272
Generation of High-Power, Reversed-Cherenkov Wakefield Radiation in a Metamaterial Structure
Dataset · Wed Feb 13 23:00:00 EST 2019 · OSTI ID:1881277

Related Subjects

43 PARTICLE ACCELERATORS
accelerator
high power microwaves
metamaterial