Imaging the spatial modulation of a relativistic electron beam

C. Zhang, W. S. Graves, L. E. Malin, John Spence, C. Limborg, E. A. Nanni, D. Cesar, J. Maxson, A. Urbanowicz, P. Musumeci

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

3 Scopus citations

Abstract

We describe Bragg diffraction of relativistic electron beams through a patterned Si crystal consisting of alternating thick and thin strips to produce nanometer scale electron density modulations. Multi-slice simulations show that a two-beam situation can be set up where, for a particular thickness of Si, nearly 100% of the electron beam is diffracted. Plans are underway to carry out experiments showing this effect in UCLA's ultrafast electron microscopy lab with 3.5 MeV electrons. We will select either the diffracted beam or the primary beam with a small aperture in the diffraction plane of a magnetic lens, and so record either the dark or bright field magnified image of the strips. Our first goal is to observe the nanopatterned beam at the image plane. We will then investigate various crystal thicknesses and sample orientations to maximize the contrast in the pattern and explore tuning the period of the modulation through varying magnification.

Original languageEnglish (US)
Title of host publicationIPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference
PublisherJoint Accelerator Conferences Website - JACoW
Pages480-482
Number of pages3
ISBN (Electronic)9783954501823
StatePublished - Jul 2017
Event8th International Particle Accelerator Conference, IPAC 2017 - Bella Conference Center, Denmark
Duration: May 14 2017May 19 2017

Publication series

NameIPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference

Conference

Conference8th International Particle Accelerator Conference, IPAC 2017
Country/TerritoryDenmark
CityBella Conference Center
Period5/14/175/19/17

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Imaging the spatial modulation of a relativistic electron beam'. Together they form a unique fingerprint.

Cite this