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Title: Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation

Abstract

We present a new method for generation of relativistic electron beams with current modulation on the nanometer scale and below. The current modulation is produced by diffracting relativistic electrons in single crystal Si, accelerating the diffracted beam and imaging the crystal structure, then transferring the image into the temporal dimension via emittance exchange. The modulation period can be tuned by adjusting electron optics after diffraction. This tunable longitudinal modulation can have a period as short as a few angstroms, enabling production of coherent hard x-rays from a source based on inverse Compton scattering with total accelerator length of approximately ten meters. Electron beam simulations from cathode emission through diffraction, acceleration, and image formation with variable magnification are presented along with estimates of the coherent x-ray output properties.

Authors:
; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1417530
Alternate Identifier(s):
OSTI ID: 1424740
Grant/Contract Number:  
FG02-10ER46745; AC02-76SF00515; DMR-1042342; 1632780; N66001-11-1-4192
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: 1; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Nanni, E. A., Graves, W. S., and Moncton, D. E. Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation. United States: N. p., 2018. Web. doi:10.1103/PhysRevAccelBeams.21.014401.
Nanni, E. A., Graves, W. S., & Moncton, D. E. Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation. United States. doi:10.1103/PhysRevAccelBeams.21.014401.
Nanni, E. A., Graves, W. S., and Moncton, D. E. Fri . "Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation". United States. doi:10.1103/PhysRevAccelBeams.21.014401.
@article{osti_1417530,
title = {Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation},
author = {Nanni, E. A. and Graves, W. S. and Moncton, D. E.},
abstractNote = {We present a new method for generation of relativistic electron beams with current modulation on the nanometer scale and below. The current modulation is produced by diffracting relativistic electrons in single crystal Si, accelerating the diffracted beam and imaging the crystal structure, then transferring the image into the temporal dimension via emittance exchange. The modulation period can be tuned by adjusting electron optics after diffraction. This tunable longitudinal modulation can have a period as short as a few angstroms, enabling production of coherent hard x-rays from a source based on inverse Compton scattering with total accelerator length of approximately ten meters. Electron beam simulations from cathode emission through diffraction, acceleration, and image formation with variable magnification are presented along with estimates of the coherent x-ray output properties.},
doi = {10.1103/PhysRevAccelBeams.21.014401},
journal = {Physical Review Accelerators and Beams},
number = 1,
volume = 21,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.21.014401

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: Schematic of the compact coherent x-ray source with RF photo-injector, electron diffraction crystal, X-band linac, EEX line and ICS laser interaction area. Entire assembly is approximately 10 m long.

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    Works referencing / citing this record:

    Collective instabilities and high-gain regime in a free electron laser
    journal, July 1984


    Relativistic electron diffraction at the UCLA Pegasus photoinjector laboratory
    journal, October 2008


    First lasing and operation of an ångstrom-wavelength free-electron laser
    journal, August 2010


    First light from SACLA
    journal, July 2011


    First lasing of an echo-enabled harmonic generation free-electron laser
    journal, May 2012


    Ultrafast time-resolved electron diffraction with megavolt electron beams
    journal, October 2006

    • Hastings, J. B.; Rudakov, F. M.; Dowell, D. H.
    • Applied Physics Letters, Vol. 89, Issue 18
    • DOI: 10.1063/1.2372697

    Transmission-electron diffraction by MeV electron pulses
    journal, June 2011

    • Murooka, Y.; Naruse, N.; Sakakihara, S.
    • Applied Physics Letters, Vol. 98, Issue 25
    • DOI: 10.1063/1.3602314

    Emission properties of body-centered cubic elemental metal photocathodes
    journal, April 2015

    • Li, Tuo; Rickman, Benjamin L.; Schroeder, W. Andreas
    • Journal of Applied Physics, Vol. 117, Issue 13
    • DOI: 10.1063/1.4916598

    Diffraction channelling of fast electrons and positrons in crystals
    journal, August 1966


    Nearly copropagating sheared laser pulse FEL undulator for soft x-rays
    journal, July 2013


    High-Gain Harmonic-Generation Free-Electron Laser
    journal, August 2000


    Mapping Atomic Motions with Ultrabright Electrons: The Chemists' Gedanken Experiment Enters the Lab Frame
    journal, April 2014