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Title: Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids

Abstract

This study details the development of a single-shot diagnostic technique for the 4D average and core phase space densities of low-charge, high-brightness electron beams, based on the analysis of shadow point-projection images of metal grids. This technique is similar to the standard pepper pot method, although it allows much greater transmission of the beam and therefore is more suitable for low-charge electron beams. Transverse coupling terms are included in the analysis, allowing the complete 4D transverse beam matrix to be reconstructed. The 4D beam phase space information is extremely important for the characterization of nonround beams. An analysis of the resolution limits and experimental benchmarking of the technique with pepper-pot emittance measurements are presented.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1478564
Alternate Identifier(s):
OSTI ID: 1483682
Grant/Contract Number:  
SC0009914
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 21 Journal Issue: 10; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Marx, D., Giner Navarro, J., Cesar, D., Maxson, J., Marchetti, B., Assmann, R., and Musumeci, P. Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids. United States: N. p., 2018. Web. doi:10.1103/PhysRevAccelBeams.21.102802.
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Marx, D., Giner Navarro, J., Cesar, D., Maxson, J., Marchetti, B., Assmann, R., & Musumeci, P. Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids. United States. https://doi.org/10.1103/PhysRevAccelBeams.21.102802
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Marx, D., Giner Navarro, J., Cesar, D., Maxson, J., Marchetti, B., Assmann, R., and Musumeci, P. Mon . "Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids". United States. https://doi.org/10.1103/PhysRevAccelBeams.21.102802.
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@article{osti_1478564,
title = {Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids},
author = {Marx, D. and Giner Navarro, J. and Cesar, D. and Maxson, J. and Marchetti, B. and Assmann, R. and Musumeci, P.},
abstractNote = {This study details the development of a single-shot diagnostic technique for the 4D average and core phase space densities of low-charge, high-brightness electron beams, based on the analysis of shadow point-projection images of metal grids. This technique is similar to the standard pepper pot method, although it allows much greater transmission of the beam and therefore is more suitable for low-charge electron beams. Transverse coupling terms are included in the analysis, allowing the complete 4D transverse beam matrix to be reconstructed. The 4D beam phase space information is extremely important for the characterization of nonround beams. An analysis of the resolution limits and experimental benchmarking of the technique with pepper-pot emittance measurements are presented.},
doi = {10.1103/PhysRevAccelBeams.21.102802},
journal = {Physical Review Accelerators and Beams},
number = 10,
volume = 21,
place = {United States},
year = {Mon Oct 15 00:00:00 EDT 2018},
month = {Mon Oct 15 00:00:00 EDT 2018}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevAccelBeams.21.102802
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Citation Metrics:
Cited by: 10 works
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Figures / Tables:

FIG. 1 FIG. 1: Top: intensity plot of a sample image at the screen, generated from the output of a simulation (details in Sec. Ⅲ) of an electron beam masked with a TEM300 grid. Axis labels of the image are in pixels and the pixel size is 15 $μ$m. Middle: sheared imagemore » with horizontal and vertical lines showing detected minima of the projections onto the axis. These projections are also shown as red lines on the image. Bottom: screen intensity profile showing points where the fits are done.« less
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    Works referencing / citing this record:

    Single-Shot Reconstruction of Core 4D Phase Space of High-Brightness Electron Beams using Metal Grids
    text, January 2018

    • Giner Navarro, J.; Cesar, D.; Maxson, J.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2018-03995

    Ultrafast Relativistic Electron Nanoprobes
    journal, May 2019

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      Figures / Tables found in this record:

      FIG. 1 (p. 4)figure
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      TABLE I (p. 6)table
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      TABLE II (p. 7)table
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      FIG. 10 (p. 9)figure
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      FIG. 11 (p. 10)figure
      FIG. 12 (p. 10)figure
      TABLE III (p. 10)table
      TABLE IV (p. 12)table
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