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
 

Single Shot Characterization of High Transformer Ratio Wakefields in Nonlinear Plasma Acceleration

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [3];  [3];  [3];  [3];  [3]
  1. Univ. of California, Los Angeles, CA (United States); University of California Los Angeles
  2. Univ. of California, Los Angeles, CA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
+ Show Author Affiliations
We report that plasma wakefields can enable very high accelerating gradients for frontier high energy particle accelerators, in excess of 10 GeV/m. To overcome limits on single stage acceleration, specially shaped drive beams can be used in both linear and nonlinear plasma wakefield accelerators (PWFA), to increase the transformer ratio, implying that the drive beam deceleration is minimized relative to acceleration obtained in the wake. In this Letter, we report the results of a nonlinear PWFA, high transformer ratio experiment using high-charge, longitudinally asymmetric drive beams in a plasma cell. An emittance exchange process is used to generate variable drive current profiles, in conjunction with a long (multiple plasma wavelength) witness beam. The witness beam is energy modulated by the wakefield, yielding a response that contains detailed spectral information in a single-shot measurement. Using these methods, we generate a variety of beam profiles and characterize the wakefields, directly observing transformer ratios up to R=7.8. Lastly, a spectrally based reconstruction technique, validated by 3D particle-in-cell simulations, is introduced to obtain the drive beam current profile from the decelerating wake data.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of California, Los Angeles, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Grant/Contract Number:
AC02-06CH11357; SC0017648
OSTI ID:
1597566
Alternate ID(s):
OSTI ID: 1616526
Report Number(s):
APS/123--QED
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 124; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (32)

Approximations to multiple Coulomb scattering journal May 1991
Photocathode laser based bunch shaping for high transformer ratio plasma wakefield acceleration
  • Loisch, G.; Good, J.; Gross, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 909 https://doi.org/10.1016/j.nima.2018.02.043
journal November 2018
Energy doubling of 42 GeV electrons in a metre-scale plasma wakefield accelerator journal February 2007
Instantaneous Direct‐Display System of Plasma Parameters by Means of Triple Probe journal August 1965
The WARP Code: Modeling High Intensity Ion Beams
  • Grote, David P.
  • ELECTRON CYCLOTRON RESONANCE ION SOURCES: 16th International Workshop on ECR Ion Sources ECRIS'04, AIP Conference Proceedings https://doi.org/10.1063/1.1893366
conference January 2005
Limits of linear plasma wakefield theory for electron or positron beams journal June 2005
Interference phenomenon in optical transition radiation and its application to particle beam diagnostics and multiple‐scattering measurements journal August 1975
Wake fields and wake field acceleration conference January 1985
Plasma wakefield acceleration experiments at FACET journal May 2010
Trapping, thermal effects, and wave breaking in the nonlinear plasma wake-field accelerator journal October 1988
Acceleration and focusing of electrons in two-dimensional nonlinear plasma wake fields journal November 1991
Perturbation-minimized triangular bunch for high-transformer ratio using a double dogleg emittance exchange beam line journal December 2016
Spatial control of photoemitted electron beams using a microlens-array transverse-shaping technique journal October 2017
Single-shot wakefield measurement system journal June 2018
Propagation of short electron pulses in underdense plasmas journal May 1994
Generation and Measurement of Relativistic Electron Bunches Characterized by a Linearly Ramped Current Profile journal May 2008
Generation of Ramped Current Profiles in Relativistic Electron Beams Using Wakefields in Dielectric Structures journal February 2017
Precision Control of the Electron Longitudinal Bunch Shape Using an Emittance-Exchange Beam Line journal March 2017
Observation of High Transformer Ratio of Shaped Bunch Generated by an Emittance-Exchange Beam Line journal March 2018
Observation of High Transformer Ratio Plasma Wakefield Acceleration journal August 2018
Nonlinear Theory for Relativistic Plasma Wakefields in the Blowout Regime journal April 2006
Generation of relativistic electron bunches with arbitrary current distribution via transverse-to-longitudinal phase space exchange journal February 2011
Transverse emittance growth in staged laser-wakefield acceleration journal November 2012
Tailored electron bunches with smooth current profiles for enhanced transformer ratios in beam-driven acceleration journal August 2015
On Collinear Wake Field Acceleration journal October 1985
Nonlinear Plasma Dynanics in the Plasma Wakefield Accelerator journal January 1987
Propagation of short electron pulses in underdense plasmas conference January 1993
Observation of High Transformer Ratio Plasma Wakefield Acceleration text January 2018
Photocathode laser based bunch shaping for high transformer ratio plasma wakefield acceleration text January 2018
Externally Heated Hollow Cathode Arc Plasma Source for Experiments in Plasma Wakefield Acceleration journal September 2019
Generation of Relativistic Electron Bunches with Arbitrary Current Distribution via Transverse-to-Longitudinal Phase Space Exchange text January 2010
Tailored electron bunches with smooth current profiles for enhanced transformer ratios in beam-driven acceleration text January 2015

Similar Records

Optimization of transformer ratio and beam loading in a plasma wakefield accelerator with a structure-exploiting algorithm
Journal Article · Sun May 14 20:00:00 EDT 2023 · Physics of Plasmas · OSTI ID:1974437

Related Subjects

43 PARTICLE ACCELERATORS
Beam control
Plasma acceleration & new acceleration techniques