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Title: Measured Emittance Dependence on the Injection Method in Laser Plasma Accelerators

Abstract

Here, single-shot, charge-dependent emittance measurements of electron beams generated by a laser plasma accelerator (LPA) reveal that shock-induced density down-ramp injection produces beams with normalized emittances a factor of 2 smaller than beams produced via ionization injection. Such a comparison is made possible by the tunable LPA setup, which allows electron beams with nearly identical central energy and peak spectral charge density to be produced using the two distinct injection mechanisms. Parametric measurements of this type are essential for the development of LPA-based applications which ultimately require high charge density and low emittance.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Dept. of Physics
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
OSTI Identifier:
1440953
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 10; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Barber, S. K., van Tilborg, J., Schroeder, C. B., Lehe, R., Tsai, H. -E., Swanson, K. K., Steinke, S., Nakamura, K., Geddes, C. G. R., Benedetti, C., Esarey, E., and Leemans, W. P. Measured Emittance Dependence on the Injection Method in Laser Plasma Accelerators. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.104801.
Barber, S. K., van Tilborg, J., Schroeder, C. B., Lehe, R., Tsai, H. -E., Swanson, K. K., Steinke, S., Nakamura, K., Geddes, C. G. R., Benedetti, C., Esarey, E., & Leemans, W. P. Measured Emittance Dependence on the Injection Method in Laser Plasma Accelerators. United States. doi:10.1103/PhysRevLett.119.104801.
Barber, S. K., van Tilborg, J., Schroeder, C. B., Lehe, R., Tsai, H. -E., Swanson, K. K., Steinke, S., Nakamura, K., Geddes, C. G. R., Benedetti, C., Esarey, E., and Leemans, W. P. Fri . "Measured Emittance Dependence on the Injection Method in Laser Plasma Accelerators". United States. doi:10.1103/PhysRevLett.119.104801.
@article{osti_1440953,
title = {Measured Emittance Dependence on the Injection Method in Laser Plasma Accelerators},
author = {Barber, S. K. and van Tilborg, J. and Schroeder, C. B. and Lehe, R. and Tsai, H. -E. and Swanson, K. K. and Steinke, S. and Nakamura, K. and Geddes, C. G. R. and Benedetti, C. and Esarey, E. and Leemans, W. P.},
abstractNote = {Here, single-shot, charge-dependent emittance measurements of electron beams generated by a laser plasma accelerator (LPA) reveal that shock-induced density down-ramp injection produces beams with normalized emittances a factor of 2 smaller than beams produced via ionization injection. Such a comparison is made possible by the tunable LPA setup, which allows electron beams with nearly identical central energy and peak spectral charge density to be produced using the two distinct injection mechanisms. Parametric measurements of this type are essential for the development of LPA-based applications which ultimately require high charge density and low emittance.},
doi = {10.1103/PhysRevLett.119.104801},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 10,
volume = 119,
place = {United States},
year = {2017},
month = {9}
}