[LA-SiGMA-funded] LI-LA-SiGMA seminar Today, April 12

[Dentcho Genov]

Dear All,

 

This is a kind reminder that our next LI-LA-SiGMA seminar is today, April 12
at 2.00pm. Our speaker is Dr. Les Butler, Dept of Chemistry, LSU

 

Title: 3D+ X-ray & Neutron Imaging in Materials Science for Energy: Hydrogen
Storage and Batteries

 

Abstract: Neutron imaging is an emerging field with new-found applications
for energy applications.  Compared to X-ray imaging, neutron fluxes are much
lower, thus speed and spatial resolution cannot compete with X-ray imaging.
However, neutron-matter interactions, especially with crystalline materials,
offer unique contrast mechanisms.  We have shown that neutron imaging is
sensitive to the lithium-graphite structures of charged lithium-ion polymer
batteries, even when imaging an intact, commercial battery. Processing raw
neutron images into clean 3D volumes is challenging.  First, the "sit still"
requirement is violated when imaging a dynamic system; this problem is
partially alleviated with a Greek golden ratio based angle order.  Second,
the inverse Radon transform requires [0,1] neutron-matter interactions, a
poor assumption for thicker samples.  Third, the large data volumes are
challenging to reduce to a single scalar description of the complex sample.
Butler is a co-PI on an instrument development team seeking a $20M neutron
imaging beamline at the ORNL Spallation Neutron Source, thus solutions to
these problems are welcomed

 

The access grid locations are as follow: 

 

Tulane: AG room: 403 Stanley Thomas Hall

University of Louisiana at Lafayette: AG room: Abdalla Hall

Southern University:  AG room: 218 Moore Hall

UNO: AG room:  SC 2002

LSU: AG room:  Johnston 338

LATECH: AG room: 234 Netken Hall

 

Please, distribute this email to your students and colleagues.

 

Kind Regards,

Dentcho

 

----

Dentcho A. Genov, PhD

The LONI Institute Fellow

Assistant Professor of Physics & Electrical Engineering

Louisiana Tech University, Engineering Annex, Room 220

599 W Arizona Ave, Ruston LA 71272

 

Phone: (318) 257-4190, Fax: (318) 257-2777

Webpage: http://www.phys.latech.edu/~dgenov/

 

 

 

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