IEEE Day Celebrations: Invited Talk by Dr. Saptarshi Mukherjee (Lawrence Livermore National Laboratory, California) and Interactive QnA Session with Dr. Goutam Chattopadhyay (NASA-JPL, Caltech, US)
On the occasion of IEEE Day 2022, the IEEE MTT-S Student Branch Chapter, IIT Kanpur, in association with the IEEE MTT-S Uttar Pradesh Section Chapter, is pleased to organize a Lecture by Dr. Saptarshi Mukherjee, Research Scientist, Lawrence Livermore National Laboratory, California and an interactive Q&A session with Dr. Goutam Chattopadhyay, Senior Research Scientist, NASA-Jet Propulsion Laboratory, California Institute of Technology, USA
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Dr. Saptarshi Mukherjee of Lawrence National Laboratory, Livermore, California
Electromagnetic Diagnostics for In-situ Metal Additive Manufacturing
Over recent years, advanced manufacturing (AM) of metals has
become increasingly sophisticated with finer control of the build part and
higher quality material properties. New manufacturing methods have enabled
a wide breadth of geometries and feature sizes, which exhibit impressive
mechanical and thermal performance characteristics, and are particularly
useful for next-generation lightweight and multi-functional engineering
applications. Current characterization systems based on x-ray, optical and
mechanical interrogation struggle to measure dimensions, phase, and
composition in manufacturing-relevant timescales. This motivates the need
for new reliable and robust nondestructive measurement approaches that must
form the foundation of future manufacturing processes. In this talk I will
discuss in-situ electromagnetic diagnostics that were developed at LLNL for
real-time characterization of the metal AM process. I will highlight both
experimental and computational capabilities at LLNL which were employed to
advance these capabilities.
This work was performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
and supported by the LLNL-LDRD Program under Project No. 20-SI-001. This is
Lawrence Livermore National Laboratory Contribution Number LLNL-ABS-835444
Biography:
Dr. Saptarshi Mukherjee received the B.Tech. degree in Electronics and
Communication Engineering from the National Institute of Technology,
Durgapur, India, in 2013, and the Ph.D. degree in Electrical Engineering
from Michigan State University, East Lansing, MI, USA, in 2018. He joined
as a Postdoctoral Research Staff member and is currently working as an
Applied Electromagnetics Research Scientist at Lawrence Livermore National
Laboratory (LLNL). Dr. Mukherjee’s research interests include
nondestructive evaluation methods in advanced manufacturing, computational
geosciences, imaging and inverse problems and high-power microwave devices.
He has authored 3 patents and over 22 technical papers. He is currently
serving as an American Society for Nondestructive Testing (ASNT) mentor,
committee member of ASNT research and engineering councils, and current
chair of the ASNT Golden Gate Section. He has served as the chair of the
Electromagnetic Nondestructive Evaluation workshop at LLNL and a session
chair for 8 international conferences. He received the National Science
Foundation International Research Fellowship in 2015, ASNT Graduate
Fellowship award in 2017, ASNT Travel Grant award in 2018 and the
Atmospheric Earth & Energy Sciences Directorate (LLNL) stand-out award in
2021.
Email:
Address:Livermore, , California, California, United States
Dr. Goutam Chattopadhyay
Anything and Everything: DART MISSION
NASA's Double Asteroid Redirection Test (DART) was a space mission
designed to test a method of planetary defence against near-Earth
asteroids (NEOs). It was designed to determine how much a spacecraft's
impact deflects an asteroid via momentum transfer by impacting it head-on
and attempting to slow it down. The chosen asteroid for the experiment
poses no actual threat to Earth. The probe was launched from Earth in
November 2021 and crashed into Dimorphos, the minor planet moon of the
asteroid Didymos, on 26 September 2022.
Biography:
Goutam Chattopadhyay is a Senior Scientist at the NASA's Jet Propulsion
Laboratory, California Institute of Technology, a Visiting Associate at the
Division of Physics, Mathematics, and Astronomy at the California Institute
of Technology, Pasadena, USA. He received the Ph.D. degree in electrical
engineering from the California Institute of Technology (Caltech),
Pasadena, in 2000. He is a Fellow of IEEE (USA) and IETE (India) and an
IEEE Distinguished Lecturer.
His research interests include microwave, millimeter-wave, and terahertz
receiver systems and radars, and development of space instruments for the
search for life beyond Earth.
He has more than 350 publications in international journals and conferences
and holds more than twenty patents. He also received more than 35 NASA
technical achievement and new technology invention awards. He received the
IEEE Region-6 Engineer of the Year Award in 2018, Distinguished Alumni
Award from the Indian Institute of Engineering Science and Technology
(IIEST), India in 2017. He was the recipient of the best journal paper
award in 2020 and 2013 by IEEE Transactions on Terahertz Science and
Technology, best paper award for antenna design and applications at the
European Antennas and Propagation conference (EuCAP) in 2017, and IETE
Prof. S. N. Mitra Memorial Award in 2014. He is an elected AdCom member of
the IEEE MTTS and Chair of the Meetings and Symposia Committee.