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Title: Observations n Microbunching of electrons in Laser-Driven Plasma Accelerators and Free-Electron

Abstract

We provide observations on the visible-wavelength microbunching of relativistic electrons at beam energies >200 MeV in both laser-driven plasma accelerators (LPAs) and a self-amplified spontaneous emission (SASE) free-electron laser (FEL). An analytical model for coherent optical transition radiation interferometry (COTRI) addresses both cases. It is noted that the COTR/OTR gain observed in the LPA rivals that of the SASE FEL at saturation, although the few micron transverse sizes of the microbunched beamlets are much smaller than in the FEL. The broadband microbunching observed in the LPA case could act as a seed for a SASE FEL experiment with tunability over the visible regime, in principle.

Authors:
 [1];  [2];  [3];  [3]
  1. Fermilab
  2. Unlisted, MD
  3. Texas U.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1572515
Report Number(s):
FERMILAB-CONF-19-399-AD
oai:inspirehep.net:1761315
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 39th International Free Electron Laser Conference, Hamburg, Germany, 08/26-08/30/2019
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Lumpkin, A. H., Rule, D. W., LaBerge, M., and Downer, M. C. Observations n Microbunching of electrons in Laser-Driven Plasma Accelerators and Free-Electron. United States: N. p., 2019. Web.
Lumpkin, A. H., Rule, D. W., LaBerge, M., & Downer, M. C. Observations n Microbunching of electrons in Laser-Driven Plasma Accelerators and Free-Electron. United States.
Lumpkin, A. H., Rule, D. W., LaBerge, M., and Downer, M. C. Thu . "Observations n Microbunching of electrons in Laser-Driven Plasma Accelerators and Free-Electron". United States. https://www.osti.gov/servlets/purl/1572515.
@article{osti_1572515,
title = {Observations n Microbunching of electrons in Laser-Driven Plasma Accelerators and Free-Electron},
author = {Lumpkin, A. H. and Rule, D. W. and LaBerge, M. and Downer, M. C.},
abstractNote = {We provide observations on the visible-wavelength microbunching of relativistic electrons at beam energies >200 MeV in both laser-driven plasma accelerators (LPAs) and a self-amplified spontaneous emission (SASE) free-electron laser (FEL). An analytical model for coherent optical transition radiation interferometry (COTRI) addresses both cases. It is noted that the COTR/OTR gain observed in the LPA rivals that of the SASE FEL at saturation, although the few micron transverse sizes of the microbunched beamlets are much smaller than in the FEL. The broadband microbunching observed in the LPA case could act as a seed for a SASE FEL experiment with tunability over the visible regime, in principle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

Conference:
Other availability
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