High-speed multi-frame 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 each being of a programmable pulse duration, 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 a plurality of plates. A control system having a digital sequencer 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 enable programmable pulse durations and programmable inter-pulse spacings.
- Inventors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1239655
- Patent Number(s):
- 9,269,527
- Application Number:
- 14/653,138
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Feb 14
- 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 multi-frame 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 multi-frame 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. 2016.
"High-speed multi-frame dynamic transmission electron microscope image acquisition system with arbitrary timing". United States. https://www.osti.gov/servlets/purl/1239655.
@article{osti_1239655,
title = {High-speed multi-frame 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 each being of a programmable pulse duration, 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 a plurality of plates. A control system having a digital sequencer 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 enable programmable pulse durations and programmable inter-pulse spacings.},
doi = {},
url = {https://www.osti.gov/biblio/1239655},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 23 00:00:00 EST 2016},
month = {Tue Feb 23 00:00:00 EST 2016}
}
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