skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-speed multiframe dynamic transmission electron microscope image acquisition system with arbitrary timing

Abstract

An electron microscope is disclosed which has a laser-driven photocathode and an arbitrary waveform generator (AWG) laser system ("laser"). The laser produces a train of temporally-shaped laser pulses of a predefined pulse duration and waveform, and directs the laser pulses to the laser-driven photocathode to produce a train of electron pulses. An image sensor is used along with a deflector subsystem. The deflector subsystem is arranged downstream of the target but upstream of the image sensor, and has two pairs of plates arranged perpendicular to one another. A control system controls the laser and a plurality of switching components synchronized with the laser, to independently control excitation of each one of the deflector plates. This allows each electron pulse to be directed to a different portion of the image sensor, as well as to be provided with an independently set duration and independently set inter-pulse spacings.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1258006
Patent Number(s):
9,373,479
Application Number:
14/851,692
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Sep 11
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 36 MATERIALS SCIENCE

Citation Formats

Reed, Bryan W., Dehope, William J, Huete, Glenn, LaGrange, Thomas B., and Shuttlesworth, Richard M. High-speed multiframe dynamic transmission electron microscope image acquisition system with arbitrary timing. United States: N. p., 2016. Web.
Reed, Bryan W., Dehope, William J, Huete, Glenn, LaGrange, Thomas B., & Shuttlesworth, Richard M. High-speed multiframe dynamic transmission electron microscope image acquisition system with arbitrary timing. United States.
Reed, Bryan W., Dehope, William J, Huete, Glenn, LaGrange, Thomas B., and Shuttlesworth, Richard M. Tue . "High-speed multiframe dynamic transmission electron microscope image acquisition system with arbitrary timing". United States. https://www.osti.gov/servlets/purl/1258006.
@article{osti_1258006,
title = {High-speed multiframe dynamic transmission electron microscope image acquisition system with arbitrary timing},
author = {Reed, Bryan W. and Dehope, William J and Huete, Glenn and LaGrange, Thomas B. and Shuttlesworth, Richard M},
abstractNote = {An electron microscope is disclosed which has a laser-driven photocathode and an arbitrary waveform generator (AWG) laser system ("laser"). The laser produces a train of temporally-shaped laser pulses of a predefined pulse duration and waveform, and directs the laser pulses to the laser-driven photocathode to produce a train of electron pulses. An image sensor is used along with a deflector subsystem. The deflector subsystem is arranged downstream of the target but upstream of the image sensor, and has two pairs of plates arranged perpendicular to one another. A control system controls the laser and a plurality of switching components synchronized with the laser, to independently control excitation of each one of the deflector plates. This allows each electron pulse to be directed to a different portion of the image sensor, as well as to be provided with an independently set duration and independently set inter-pulse spacings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {6}
}

Patent:

Save / Share:

Works referenced in this record:

The Evolution of Ultrafast Electron Microscope Instrumentation
journal, July 2009

  • Reed, B. W.; Armstrong, M. R.; Browning, N. D.
  • Microscopy and Microanalysis, Vol. 15, Issue 4
  • DOI: 10.1017/S1431927609090394

High-speed transmission electron microscope
journal, October 2003

  • Dömer, H.; Bostanjoglo, O.
  • Review of Scientific Instruments, Vol. 74, Issue 10
  • DOI: 10.1063/1.1611612

Picosecond framing technique using a conventional streak camera
journal, August 1981

  • Niu, H.; Chao, T.; Sibbett, W.
  • Review of Scientific Instruments, Vol. 52, Issue 8
  • DOI: 10.1063/1.1136757

Low-emittance electron-beam generation with laser pulse shaping in photocathode radio-frequency gun
journal, August 2002

  • Yang, J.; Sakai, F.; Yanagida, T.
  • Journal of Applied Physics, Vol. 92, Issue 3
  • DOI: 10.1063/1.1487457

The injection laser system on the National Ignition Facility
conference, February 2007

  • Bowers, Mark; Burkhart, Scott; Cohen, Simon
  • Lasers and Applications in Science and Engineering, SPIE Proceedings
  • DOI: 10.1117/12.700478

4D ultrafast electron microscopy: Imaging of atomic motions, acoustic resonances, and moiré fringe dynamics
journal, December 2009


Approaches for ultrafast imaging of transient materials processes in the transmission electron microscope
journal, November 2012


Development of a Dynamic Transmission Electron Microscope (DTEM) for the Study of Self-Propagating Reactions in Multilayer Foils
journal, August 2005


Nanosecond time-resolved investigations using the in situ of dynamic transmission electron microscope (DTEM)
journal, October 2008


Single-shot dynamic transmission electron microscopy
journal, July 2006

  • LaGrange, T.; Armstrong, M. R.; Boyden, K.
  • Applied Physics Letters, Vol. 89, Issue 4
  • DOI: 10.1063/1.2236263

The Development of a Flexible Laser Platform for Photoemission based, High-Time Resolution Electron Microscopes
journal, July 2012


Multifocal laser surgery: Cutting enhancement by hydrodynamic interactions between cavitation bubbles
journal, October 2010