Nanometer scale coherent current modulation via a nanotip cathode array and emittance exchange

E. A. Nanni, William Graves, P. Piot

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

We present particle-in-cell (PIC) simulations of electron bunches with nm scale longitudinal modulation produced using a compact 2-20 MeV LINAC. The modulation is initially imparted in the transverse dimension of the electron bunch with a nano-patterned photo-emitter in an X-band RF gun with 2 MeV exit energy. The electron bunch passes through a 1 m standing wave X-band LINAC which can raise the beam energy up to 20 MeV. The transverse modulation is exchanged into the longitudinal dimension using a double dog-leg emittance exchange setup with a 5 cell RF deflector cavity. The modulation pitch can be tuned by adjusting the spacing of the nano-patterned photo-emitter or magnification of the transverse pitch with electron optics. The electron beam parameters are optimized to produce coherent XFEL radiation upon interacting with a laser undu-lator.

Original languageEnglish (US)
Title of host publicationIPAC 2014: Proceedings of the 5th International Particle Accelerator Conference
PublisherJoint Accelerator Conferences Website (JACoW)
Pages1952-1955
Number of pages4
ISBN (Print)9783954501328
StatePublished - Jul 1 2014
Externally publishedYes
Event5th International Particle Accelerator Conference, IPAC 2014 - Dresden, Germany
Duration: Jun 15 2014Jun 20 2014

Other

Other5th International Particle Accelerator Conference, IPAC 2014
CountryGermany
CityDresden
Period6/15/146/20/14

Fingerprint

emittance
cathodes
modulation
superhigh frequencies
emitters
electron optics
electrons
dogs
deflectors
coherent radiation
magnification
cells
standing waves
adjusting
spacing
electron beams
cavities
energy
lasers
simulation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Nanni, E. A., Graves, W., & Piot, P. (2014). Nanometer scale coherent current modulation via a nanotip cathode array and emittance exchange. In IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference (pp. 1952-1955). Joint Accelerator Conferences Website (JACoW).

Nanometer scale coherent current modulation via a nanotip cathode array and emittance exchange. / Nanni, E. A.; Graves, William; Piot, P.

IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), 2014. p. 1952-1955.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanni, EA, Graves, W & Piot, P 2014, Nanometer scale coherent current modulation via a nanotip cathode array and emittance exchange. in IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), pp. 1952-1955, 5th International Particle Accelerator Conference, IPAC 2014, Dresden, Germany, 6/15/14.
Nanni EA, Graves W, Piot P. Nanometer scale coherent current modulation via a nanotip cathode array and emittance exchange. In IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW). 2014. p. 1952-1955
Nanni, E. A. ; Graves, William ; Piot, P. / Nanometer scale coherent current modulation via a nanotip cathode array and emittance exchange. IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), 2014. pp. 1952-1955
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