Tech Briefs Magazine - April 2022 - 39
networks. What we've essentially done is
taken those and applied them to the scientific
challenge of phase retrieval, " said
group leader Mathew Cherukara.
Using these training algorithms, the
research team demonstrated a way to recover
phase information. But what makes
their approach unique is that it also enables
scientists to retrieve essential information
about their electron microscope.
" Normally when you're trying to retrieve
the phase, you presume you know
your
microscope
parameters
perfectArgonne's
Charudatta Phatak views a magnified image from a Lorentz transmission electron microscope.
Phatak's team is using AI to improve microscope sensitivity and accuracy. (Photo: Argonne
National Laboratory.)
lationship between the two. But to do this accurately, neural
networks have to be trained. That's where training algorithms
come into play.
" Tech companies like Google and Facebook have developed
packages of software that are designed to train neural
Compressed Ultrafast
Photography
With an imaging speed of 0.5 trillion frames
per second, the camera is claimed to be the
world's fastest.
National Institute of Scientific Research, Quebec
City, Canada
A
camera technology was developed that can snap a picture
of extremely fast events on the order of a picosecond (11
zeros after the decimal point). Com pressed ultrafast photography
(CUP) captures the entire process in real time and
with unparalleled resolution with just one click. The spatial
ly. However, that knowledge might not
be accurate, " said Professor Tao Zhou.
" With our method, you don't have to rely
on this assumption. Instead, you actually
get the conditions of your microscope
- that's something other phase retrieval
methods can't do. "
Their method also improves the resolution
and sensitivity of existing equipment.
This means that researchers will be able to recover tiny
shifts in phase, and in turn, get information about small changes
in magnetization and electrostatic potential, all without requiring
costly hardware upgrades.
For more information, contact media@anl.gov.
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Tech Briefs, April 2022
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Tech Briefs Magazine - April 2022
Table of Contents for the Digital Edition of Tech Briefs Magazine - April 2022
Tech Briefs Magazine - April 2022 - Intro
Tech Briefs Magazine - April 2022 - Sponsor
Tech Briefs Magazine - April 2022 - Cov1
Tech Briefs Magazine - April 2022 - Cov2
Tech Briefs Magazine - April 2022 - 1
Tech Briefs Magazine - April 2022 - 2
Tech Briefs Magazine - April 2022 - 3
Tech Briefs Magazine - April 2022 - 4
Tech Briefs Magazine - April 2022 - 5
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Tech Briefs Magazine - April 2022 - 12A
Tech Briefs Magazine - April 2022 - 12B
Tech Briefs Magazine - April 2022 - 12C
Tech Briefs Magazine - April 2022 - 12D
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Tech Briefs Magazine - April 2022 - Cov3
Tech Briefs Magazine - April 2022 - Cov4
Tech Briefs Magazine - April 2022 - MD-Cov1
Tech Briefs Magazine - April 2022 - MD-Cov2
Tech Briefs Magazine - April 2022 - MD-1
Tech Briefs Magazine - April 2022 - MD-2
Tech Briefs Magazine - April 2022 - MD-3
Tech Briefs Magazine - April 2022 - MD-4
Tech Briefs Magazine - April 2022 - MD-5
Tech Briefs Magazine - April 2022 - MD-6
Tech Briefs Magazine - April 2022 - MD-6A
Tech Briefs Magazine - April 2022 - MD-6B
Tech Briefs Magazine - April 2022 - MD-6C
Tech Briefs Magazine - April 2022 - MD-6D
Tech Briefs Magazine - April 2022 - MD-7
Tech Briefs Magazine - April 2022 - MD-8
Tech Briefs Magazine - April 2022 - MD-9
Tech Briefs Magazine - April 2022 - MD-10
Tech Briefs Magazine - April 2022 - MD-11
Tech Briefs Magazine - April 2022 - MD-12
Tech Briefs Magazine - April 2022 - MD-13
Tech Briefs Magazine - April 2022 - MD-14
Tech Briefs Magazine - April 2022 - MD-15
Tech Briefs Magazine - April 2022 - MD-16
Tech Briefs Magazine - April 2022 - MD-17
Tech Briefs Magazine - April 2022 - MD-18
Tech Briefs Magazine - April 2022 - MD-19
Tech Briefs Magazine - April 2022 - MD-20
Tech Briefs Magazine - April 2022 - MD-Cov3
Tech Briefs Magazine - April 2022 - MD-Cov4
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