Happening @ Michigan https://events.umich.edu/list/rss RSS Feed for Happening @ Michigan Events at the University of Michigan. MIPSE Seminar | Scaling Intense Laser-Atom Interactions from Low to High Frequency (October 13, 2021 3:30pm) https://events.umich.edu/event/86289 86289-21632590@events.umich.edu Event Begins: Wednesday, October 13, 2021 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
Over the past three decades, the tailoring of a light field for manipulating the dynamics of a system at the quantum level has taken a prevalent role in modern atomic, molecular and optical physics. As first described by L. V. Keldysh, the ionization of an atom by an intense laser field will evolve depending upon the light characteristics and atomic binding energy. Numerous experiments have systematically investigated the dependence of the intensity and pulse duration on the ionization dynamics. However, exploration of the wavelength dependence has been mainly confined to wavelengths near 1 μm, or in the language of Keldysh to the multiphoton or mixed ionization regime. It is technically possible to perform more thorough test the strong-field limit (tunneling), and exploit the scaling laws at wavelengths greater than 1 μm. In addition, the emergence of XFELs has broadened the scope into the x-ray regime. This new perspective on strong-field interactions is driving a renewed interest in the fundamental physics and a renaissance in applications. This talk will examine the implication of the strong-field scaling as it pertains to the production of energetic particles, the generation of attosecond pulses and molecular imaging.

About the Speaker:
Louis F. DiMauro is Professor of Physics and Hagenlocker Chair at the Ohio State University (OSU). He received his BA (1975) from Hunter College, CUNY and his Ph.D. from University of Connecticut in 1980 and was a postdoctoral fellow at SUNY Stony Brook before arriving at AT&T Bell Laboratories in 1981. He joined the staff at Brookhaven National Laboratory in 1988 rising to the rank of senior scientist. In 2004 he joined the faculty at OSU. He was awarded 2004 BNL/BSA Science & Technology Prize, 2012 OSU Distinguish Scholar Award, the 2013 OSA Meggers Prize and the 2017 APS Schawlow Prize in Laser Science. He is a Fellow of the American Physical Society, the Optical Society of American and the American Association for the Advancement of Science. He has served on numerous national and international committees, government panels, as the 2010 APS DAMOP chair, vice-chair of the NAS CAMOS committee and currently serves on the NAS Board of Physics and Astronomy. His research interests are in experimental ultra-fast and strong-field physics. In 1993, he and his collaborators introduced the widely accepted semi-classical model in strong-field physics. His current work is focused on the generation, measurement and application of attosecond x-ray pulses and the study of fundamental scaling of strong field physics.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Fri, 03 Sep 2021 10:57:53 -0400 2021-10-13T15:30:00-04:00 2021-10-13T16:30:00-04:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Prof. Louis DiMauro
Finding an Undergrad Research Position (October 13, 2021 5:00pm) https://events.umich.edu/event/88065 88065-21649065@events.umich.edu Event Begins: Wednesday, October 13, 2021 5:00pm
Location: Electrical Engineering and Computer Science Building
Organized By: Women in Electrical and Computer Engineering

Interested in doing research as an undergrad? Not sure how to get your foot in the door? Join us for a workshop to learn how!

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Careers / Jobs Fri, 08 Oct 2021 13:35:26 -0400 2021-10-13T17:00:00-04:00 2021-10-13T18:00:00-04:00 Electrical Engineering and Computer Science Building Women in Electrical and Computer Engineering Careers / Jobs Research
MIPSE Seminar | A New Regime of HED Physics: Coupling High-Rep-Rate Lasers with Cognitive Simulation (October 20, 2021 3:30pm) https://events.umich.edu/event/86293 86293-21632602@events.umich.edu Event Begins: Wednesday, October 20, 2021 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
As high-intensity short-pulse lasers that can operate at high-repetition-rate (HRR) (>10 Hz) come online around the world, the high-energy-density (HED) science they enable will experience a radical paradigm shift. The >103 increase in shot rate over today’s shot-per-hour drivers translates into dramatically faster data acquisition and more experiments, and thus the potential to significantly accelerate the advancement of HED science. However, to fully realize the potential benefits of HRR facilities requires a fundamental shift in how they are operated, and in fact, how the experiments performed on them are designed and executed. Current energetic driver facilities depend on the ability to manually tune the lasers, the targets, the diagnostics settings, and more, between single shots or sets of shots through a manual feedback loop of data collection, data analysis, and optimization largely driven by experience and intuition. At 10 Hz, this paradigm is no longer sustainable as more complex data is collected more quickly than is possible to analyze manually. Simultaneously, on-the-fly optimization of experiments will become ever more crucial as higher repetition rates will lead to more deliberate inter-shot variations and the improved operational range to allow exploration over larger regions of phase space. Consequently, it is likely that the next generation of laser facilities will be limited not by their hardware but by our ability to use that hardware effectively. We will present the vision and ongoing work to realize a HRR framework for rapidly delivered optimal experiments coupled to cognitive simulation to provide new insights in HED science.

About the Speaker: Dr. Tammy Ma is the Advanced Photon Technologies Program Element Leader for High-Intensity Laser High Energy Density (HED) Science within NIF & Photon Sciences at the Lawrence Livermore National Lab. Her group pioneers use of the highest intensity lasers in the world to investigate novel high energy density states of matter, generate energetic beams of particles, study laboratory astrophysics, and explore fusion physics. Dr. Ma graduated with a B.S. from the California Institute of Technology, and received her M.S. and Ph.D. from the U of California at San Diego. She has authored or co-authored over 185 refereed journal publications, and currently sits on the Fusion Energy Sciences Advisory Committee (FESAC), providing advice to the U.S. DOE’s Office of Science on issues related to fusion energy and plasma research. She is the recipient of the Presidential Early Career Award for Science and Engineering (PECASE), the APS Thomas H. Stix Award for her work in quantifying hydrodynamic in-stability mix in ICF implosions, and the DOE Early Career Research Award. She currently also serves as LLNL’s Deputy Director for Laboratory Directed Research & Development (LDRD) Program.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Fri, 03 Sep 2021 11:30:42 -0400 2021-10-20T15:30:00-04:00 2021-10-20T16:30:00-04:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Dr. Tammy Ma
MIPSE Seminar | Physics Impacts to Plasma Wave Thruster Design (November 3, 2021 3:30pm) https://events.umich.edu/event/86296 86296-21632604@events.umich.edu Event Begins: Wednesday, November 3, 2021 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
The allure of electrodeless, rf based thrusters is fairly obvious in the abstract: long life due to no electrode sputtering, multi-propellant operation (in some cases), higher plasma density. Examples include capacitive, inductive, and wave-based thrusters. Generally, the fundamental application of these concepts is an rf heated plasma, expanded through a divergent magnetic nozzle. When a wave is proposed as the plasma generation mechanism, certain physical parameters are proscribed by the dispersion relation, which serves to relate plasma parameters to the thruster design. Some considerations of these impacts on plasma sources can be examined in basic models of the wave dispersion, absorption, and coupling. The conservation laws in these sources provide additional constraints. The interaction of these phenomena will be discussed from a modeling and experimental perspective for a helicon source in terms of the scaling of density with power, geometry, and coupling, with implications for wave-based thrusters.

About the Speaker:
Dr. James Gilland is a Senior Scientist at the Ohio Aerospace Institute, specializing in advanced plasma propulsion (300 W to 300 MW), including Hall thrusters (HTs), magnetoplasmadynamic thrusters, and plasma wave thrusters. He currently supports NASA Solar Electric Propulsion HT development for the NASA Gateway. Dr. Gilland has performed system and mission analyses of a range of nuclear and solar electric propulsion systems; and served as the Lead Nuclear Electric Propulsion (NEP) Engineer in NASA’s Nuclear Propulsion Office, performing analysis of multimegawatt NEP power and propulsion systems for human space exploration. He is a past NASA Innovative and Advanced Concepts Fellow for his work on propellantless propulsion using Alfven plasma waves. He served on the NASEM panel for Space Nuclear Propulsion Technologies in 2020, and on several NASA advisory panels, including the High Energy Power & Propulsion Capabilities Roadmap Team. Dr. Gilland has an MS in Aerospace Engr. from Princeton U. and a PhD in Nuclear Engr. & Engr. Physics from U. of Wisconsin.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Fri, 03 Sep 2021 11:36:48 -0400 2021-11-03T15:30:00-04:00 2021-11-03T16:30:00-04:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Dr. James Gilland
An electrical engineer’s guide to research and development at Corning Incorporated (November 4, 2021 3:00pm) https://events.umich.edu/event/88126 88126-21650406@events.umich.edu Event Begins: Thursday, November 4, 2021 3:00pm
Location: Electrical Engineering and Computer Science Building
Organized By: Electrical and Computer Engineering

Dr. Donnell Walton is the 2021 ECE Willie Hobbs Moore Alumni Lectureship recipient.

Abstract

I will discuss the past, present and future of electrical-engineering-related research at Corning Incorporated. I will overview Corning’s historical industry-defining contributions in areas comprising light bulbs, vacuum tubes and cathode ray tubes.I will provide an overview of our current work in wireless networks for autonomous vehicles, adaptive optics and electronics for active optical couplers, and novel materials for high-frequency printed circuit boards. I will conclude the talk with some ruminations and lessons on industrial research.

Bio

Dr. Donnell Walton is the director of the Corning Technology Center Silicon Valley. In this role, he leads research and business development efforts to match Corning’s existing and emerging capabilities and opportunities in the western United States, in particular, the Silicon Valley region of California.

Walton joined Corning in 1999 as a senior research scientist in Science & Technology, where he performed and led research in optical fiber amplifiers and lasers. In 2004, Walton led Corning’s research and development efforts to a world leadership position in high-power (kW) fiber lasers. Then in 2006, he managed the Silicon on Glass (SiOG) platform expansion project, which demonstrated non-display applications of SiOG including imagers and photovoltaics. In 2008, Walton joined the Corning® Gorilla® Glass team as a senior applications engineer, where he extended the Gorilla Glass value proposition to form factors larger than handheld devices. In 2010, Walton was appointed manager of worldwide applications engineering for Gorilla Glass.

Prior to joining Corning, Walton was a physics professor at Howard University in Washington, D.C., where he won the National Science Foundation’s Young Investigator (CAREER) Award.

Walton earned a Ph.D. in applied physics from the University of Michigan, Ann Arbor after graduating summa cum laude with bachelor’s degrees in physics and electrical engineering from North Carolina State University. He completed the Stanford Executive Program at the Graduate School of Business in 2019. He serves on the board of the National Society of Black Physicists, the research advisory board of the IBM-HBCU Quantum Center and the corporate affiliate boards at the Universities of California in Santa Barbara and San Diego. Walton has authored or co-authored 22 U.S. patents and more than 60 technical reports.

The ECE Dr. Willie Hobbs Moore Alumni Lecture is given by ECE alumni from traditionally underrepresented groups in Electrical and Computer Engineering who are leaders in their field and serve as role models for the ECE community through their leadership, impact on society, service to the community, or other contributions.

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Lecture / Discussion Mon, 11 Oct 2021 20:14:32 -0400 2021-11-04T15:00:00-04:00 2021-11-04T16:00:00-04:00 Electrical Engineering and Computer Science Building Electrical and Computer Engineering Lecture / Discussion speaker headshot
WECE Technical Interview Panel (November 10, 2021 6:30pm) https://events.umich.edu/event/89080 89080-21660456@events.umich.edu Event Begins: Wednesday, November 10, 2021 6:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Women in Electrical and Computer Engineering

Hear from upperclassmen and graduate students about preparing for technical interviews in Electrical and Computer Engineering during WECE's technical interview panel in EECS 1303 from 6:30-7:30pm on Wednesday, November 10th! Our panelists are all experienced in technical interviews in several hardware fields, including embedded systems, robotics, VLSI, and more.

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Careers / Jobs Tue, 09 Nov 2021 09:19:29 -0500 2021-11-10T18:30:00-05:00 2021-11-10T19:30:00-05:00 Electrical Engineering and Computer Science Building Women in Electrical and Computer Engineering Careers / Jobs Macro of a Intel motherboard
12th MIPSE Graduate Student Symposium (November 17, 2021 2:00pm) https://events.umich.edu/event/89170 89170-21660817@events.umich.edu Event Begins: Wednesday, November 17, 2021 2:00pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

The 12th Annual MIPSE Graduate Student Symposium will be held in person. The symposium is an opportunity for students involved in plasma research to present the results of their investigations, learn about the research of their fellow students, and network with MIPSE faculty and staff.

The Symposium will feature a special MIPSE seminar and three student poster sessions. All student posters will be considered for the Best Presentation Award.

Schedule and details: https://mipse.umich.edu/symposium_2021.php

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Conference / Symposium Thu, 11 Nov 2021 11:03:20 -0500 2021-11-17T14:00:00-05:00 2021-11-17T19:00:00-05:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Conference / Symposium Electrical Engineering and Computer Science Building
MIPSE Seminar | The Plasma-Water Interface: Modern Challenges and New Software Tools (November 17, 2021 3:30pm) https://events.umich.edu/event/86297 86297-21632605@events.umich.edu Event Begins: Wednesday, November 17, 2021 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
The interaction of low-temperature plasmas with liquid water is a fundamental problem in many applications, from plasma medicine to chemical processing, and more generally where the generation of reactive oxygen and nitrogen species and/or of solvated electrons is of utmost importance. However, characterization of the plasma-liquid interface presents several challenges, both experimentally and computationally, due to the multiscale and multiphysics nature of the problem. In this seminar we provide an overview of recent modeling developments on plasma-liquid interfaces, presenting the new software package Zapdos-CRANE, based on the MOOSE finite-element framework. We provide a brief overview of the software, showing few case studies of interest. The model was used to study a humid argon DC plasma over a water surface, operated in both cathodic and anodic modes. In this system, one of the reactions of interest is the formation and dissolution of hydroxide (OH) radicals, which subsequently produce hydrogen peroxide. The model allows the investigation of the main plasma-chemistry reaction mechanisms for peroxide production with the plasma. The analysis reveals that hydrogen peroxide is increased during anodic plasma treatment due to elevated water vapor dissociation reactions near the interface. Finally, the role of solvated electrons generated during cathodic plasma operations is discussed, showing how they directly degrade hydrogen peroxide in the aqueous phase, inhibiting its accumulation.

About the Speaker:
Davide Curreli is Associate Professor in the Department of Nuclear, Plasma, and Radiological Engineering at the University of Illinois Urbana-Champaign, and at the National Center for Supercomputing Applications. Dr. Curreli leads the Laboratory for Computational Plasma Physics at Illinois. His research activities focus on computational modeling of plasma material interactions and plasma chemistry of low-temperature plasmas for fusion and nuclear applications. Among his current research activities, Dr. Curreli is coordinator of the Nuclear Fireball Plasma Chemistry activities within the University Research Alliance funded by DOD DTRA. His group actively works on multiple projects in Fusion Energy Sciences. Dr. Curreli is Donald Biggar Willett Faculty Scholar at the University of Illinois.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Fri, 03 Sep 2021 11:44:13 -0400 2021-11-17T15:30:00-05:00 2021-11-17T16:30:00-05:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Prof. Davide Curreli
MIPSE Seminar | Dynamics of Low Temperature Magnetized Plasmas: Self-Organization and Anomalous Electron Transport (December 8, 2021 3:30pm) https://events.umich.edu/event/86298 86298-21632606@events.umich.edu Event Begins: Wednesday, December 8, 2021 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
Low-temperature magnetized plasmas are found in many systems, including plasma processing, space weather, and spacecraft propulsion. Two phenomena that are poorly understood in cross-electric and magnetic field plasma sources, such as magnetrons and Hall effect thrusters, are: (i) self-organized structures and (ii) anomalous electron transport across the magnetic field lines. In this talk, I will present the development of physics-based modeling, including fluid moment models and high-fidelity kinetic models, to address these processes. The fluid moment model coupled with improved boundary condition treatments is applied to low-temperature magnetized plasmas. The particle-based kinetic models are used to investigate multidimensional plasma turbulence initiated by a combination of kinetic instabilities in cross-field configurations. I will also introduce data-driven modeling using optimization and state estimation techniques applied to dynamical plasma systems.

About the Speaker:
Ken Hara is an Assistant Professor of Aeronautics and Astronautics at Stanford University. He received his Ph.D. in Aerospace Engineering and Graduate Certificate in Plasma Science and Engineering from the University of Michigan in 2015, and B.S. and M.S. in Aeronautics and Astronautics from the University of Tokyo in 2008 and 2010, respectively. He was a Visiting Research Physicist at Princeton Plasma Physics Laboratory as a Japan Society for the Promotion of Science Postdoctoral Fellow. He is a recipient of several awards, including the Air Force Young Investigator Program Award, the Department of Energy Early Career Award, and the Office of Naval Research Young Investigator Program Award.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Fri, 03 Sep 2021 11:49:26 -0400 2021-12-08T15:30:00-05:00 2021-12-08T16:30:00-05:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Prof. Ken Hara
MIPSE Seminar | A Cocktail of Active Ingredients - Benefits and Challenges for Plasma Medicine (January 26, 2022 3:30pm) https://events.umich.edu/event/90464 90464-21671090@events.umich.edu Event Begins: Wednesday, January 26, 2022 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
Low-temperature plasmas in or in contact with air produce a variety of reactive oxygen and nitrogen species (RONS) – some being the same molecules that the human body generates for signaling or antimicrobial effects. Plasma treatment of eukaryotic cells can therefore cause similar effects as an innate immune system oxidative burst. Plasma exposure can mimic an immune response to tissue damage which could initiate a natural healing response. Utilizing plasma-generated RONS for plasma-aided wound healing or plasma oncology is a promising alternative to conventional treatments. Yet, the mechanisms of action and the delivery of RONS to the target are currently still under investigation. In this talk we will explore the cocktail of active ingredients produced by plasmas; the generation and transport of the reactive species O and OH from the gas phase through a liquid to a biological sample and investigate the role that the biological sample plays as part of the reaction pathway. Using the model biological sample cysteine, the results indicate that OH/H2O2-dominated chemistry is similar to that found in redox biology, whereas modifications caused by O-dominated chemistry differ significantly. Atomic oxygen is unknown in nature whereas OH and H2O2 are well known and produced by organisms. The cocktail of RONS and variety plasma sources make it difficult generalize the impact of plasma on cells. However, the tunability of plasma and the ability to tailor RONS to desired outcomes provides a promising tool for the healing of wounds and new strategies in cancer treatment.

About the Speaker:
Katharina Stapelmann is an assistant professor of nuclear engineering at North Carolina State University. She received her Ph.D. in electrical engineering from Ruhr University Bochum, Germany, in 2013, where she continued as postdoc (2014) and assistant professor of electrical engineering (2015-2017) before she joined NC State in 2017. Stapelmann’s research interests lie in the experimental investigation of generation and transport of reactive species for life science applications, e.g., plasma medicine and plasma agriculture. The focus of her research program is on plasma device development, plasma diagnostics, and the interaction of plasmas with biological substrates and systems. Stapelmann is Mercator Fellow (DFG), speaker of the board of trustees of the German national center of plasma medicine and serves on the International Advisory Board of the Journal Plasma Processes and Polymers. In 2021 she was identified as “Emerging Leader” by the IOP Journal of Physics D: Applied Physics.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Wed, 05 Jan 2022 09:24:21 -0500 2022-01-26T15:30:00-05:00 2022-01-26T16:30:00-05:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Prof. Katharina Stapelmann
Corporate Information Session with Vivacqua Crane, hosted by SWE (February 9, 2022 6:00pm) https://events.umich.edu/event/91941 91941-21684276@events.umich.edu Event Begins: Wednesday, February 9, 2022 6:00pm
Location: Electrical Engineering and Computer Science Building
Organized By: Engineering Career Resource Center

We will talk about career path discussion and careers in Intellectual Property Law

Location: EECS 1008
Virtual Link: https://umich.zoom.us/j/92431464569

-Majors Recruited: All
-Positions available: Internships
-Is the company willing to sponsor students for work authorization?: No - Sponsorship not available

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Careers / Jobs Thu, 03 Feb 2022 13:44:31 -0500 2022-02-09T18:00:00-05:00 2022-02-09T19:30:00-05:00 Electrical Engineering and Computer Science Building Engineering Career Resource Center Careers / Jobs Electrical Engineering and Computer Science Building
MIPSE Seminar | Fundamental Tests with Antihydrogen Atoms (February 16, 2022 3:30pm) https://events.umich.edu/event/90465 90465-21671092@events.umich.edu Event Begins: Wednesday, February 16, 2022 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
Motivated by the baryogenesis problem (the scarcity of antimatter in the University), CERN's ALPHA collaboration has been studying the properties of antihydrogen atoms. Since first trapping antiatoms in 2010, we have learned to routinely trap over 1000 antiatoms simultaneously, and keep the antiatoms trapped for many tens of thousands of seconds. We have been able to measure the 1S-2S and hyperfine bandwidths to the 10kHz level, which, on some scales, exceeds the accuracy of the best CPT tests. We have been able to laser cool the antiatoms, which should lead to better spectral measurement, and we have also measured the antihydrogen charge to 0.7ppb. We are constructing a new apparatus designed to measure the antimatter g to 1%, which will be a test of the weak equivalence principle. Antihydrogen is created by mixing positron and antiproton single species plasmas. The plasmas must be very cold (~10K) and, for single species plasmas, dense (~108 cm-3). Arguably, the most difficult problems in these experiments stem from achieving these parameters as all the other issues, though complex, can be solved with standard techniques of atomic and laser physics. This talk will describe some of these plasma issues and some of our physics results.

About the Speaker:
Dr. Joel Fajans is a Professor of Physics at U.C. Berkeley. He received his PhD in experimental plasma physics under George Bekefi at MIT studying free electron lasers before assuming a post-doc at the University of California at San Diego with John Malmberg and Tom O'Neil on nonneutral plasmas. Since then, his career has concentrated on basic plasma physics and nonlinear dynamics experiments, most recently aimed towards the creation and trapping of antihydrogen. He is a fellow of the American Physical Society and a recipient of the APS 2011 John Dawson Award for Excellence in Plasma Physics Research.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Wed, 05 Jan 2022 09:29:12 -0500 2022-02-16T15:30:00-05:00 2022-02-16T16:30:00-05:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Prof. Joel Fajans
MIPSE Seminar | Z-pinch Research at UC San Diego (March 9, 2022 3:30pm) https://events.umich.edu/event/90466 90466-21671093@events.umich.edu Event Begins: Wednesday, March 9, 2022 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
The Z-pinch is one of the most well-studied methods for high energy density plasma generation. Z-pinches have been used for applications such as thermonuclear fusion and as intense x-ray sources. The High Energy Density Physics Group at UC San Diego has an extensive experimental and modeling program across a variety of Z-pinch devices. The focus in this presentation is on gas puff Z-pinches and Dense Plasma Focus (DPF). These devices are highly susceptible to the Magneto Rayleigh-Taylor Instability during the implosion which can disrupt the plasma column. Experiments were conducted on the CESZAR linear transformer driver (LTD) with ~500 kA, 160 ns current pulses in a gas puff configuration. The effect of varying gas species was studied using metrics like instability amplitude and energy coupling. We demonstrate that low-impedance LTDs can implode a variety of gas puff loads with an energy coupling efficiency of ~10%. 2-D magnetohydrodynamic simulations of Ne-liner, deuterium-target gas-puff loads show that the tradeoff between stability and yield can be reduced by density profile tailoring – adding a second liner. Work on DPFs has focused on a 4.4 kJ, 280 kA DPF at UCSD and the 2 MJ, 2-3 MA Gemini DPF at the Nevada Test Site. Experiments on the UCSD DPF have shown a significant effect of insulator surface conditioning on x-ray production. The Gemini experiments focused on rare gas additions to deuterium. MHD simulations of the Gemini DPF provide evidence of an increasing fusion yield and tighter current sheaths with increased dopant concentration.

About the Speaker:
Farhat Beg is a Professor of Engineering Physics at the Department of Mechanical and Aerospace Engineering at the University of California, San Diego. He received his Ph.D. from Imperial College London. His expertise is in the field of laser plasma interaction, pulsed power-driven X- and Z-pinches, and neutron sources. He has published over 250 papers in refereed journals, including Nature, Nature Physics, Nature Photonics and Physical Review Letters, with total citations exceeding 9000 and with an H-index of 50, according to the ISI Web of Knowledge. He is the fellow of the American Physical Society, the Institute of Electrical and Electronics Engineers (IEEE) and the American Association for the Advancement of Science (AAAS). He has been a winner of the Department of Junior Faculty Award (2005) and IEEE Early Career Award (2008). This year he received IEEE Plasma Science and Applications Award. He has served as the Chair of the High-Energy Density Science Association (HEDSA) in 2009/10 and in 2017/2019 and NIF/Jupiter User group in 2017/2019.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Wed, 05 Jan 2022 09:40:04 -0500 2022-03-09T15:30:00-05:00 2022-03-09T16:30:00-05:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Prof. Farhat Beg
Professional Development with Sandia National Laboratories hosted by SWE (March 16, 2022 6:00pm) https://events.umich.edu/event/93363 93363-21703967@events.umich.edu Event Begins: Wednesday, March 16, 2022 6:00pm
Location: Electrical Engineering and Computer Science Building
Organized By: Engineering Career Resource Center

Virtual Link: https://umich.zoom.us/j/95403748868

-Majors Recruited: All
-Positions available: Full-time, Internship, Co-op
-Is the company willing to sponsor students for work authorization?: No - Sponsorship not available

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Careers / Jobs Mon, 14 Mar 2022 08:46:59 -0400 2022-03-16T18:00:00-04:00 2022-03-16T19:30:00-04:00 Electrical Engineering and Computer Science Building Engineering Career Resource Center Careers / Jobs Electrical Engineering and Computer Science Building
MIPSE Seminar | Plasma Irregularities in the Earth’s Ionosphere and Plasmasphere (March 23, 2022 3:30pm) https://events.umich.edu/event/90467 90467-21671094@events.umich.edu Event Begins: Wednesday, March 23, 2022 3:30pm
Location: Electrical Engineering and Computer Science Building
Organized By: Michigan Institute for Plasma Science and Engineering (MIPSE)

Abstract:
Plasma irregularities in the ionosphere and plasmasphere can adversely affect space-based communication and navigation systems. Even with research for over 50 years to understand the generation mechanism(s) of these irregularities, uncertainties remain. Plasma irregularities often occur in the post-sunset, ionosphere equatorial F region broadening in altitude over tens of kilometers due to formation of ‘electron clouds with scale sizes of 30 meters’ – equatorial spread F (ESF). Subsequent observational data find ESF to be a complex phenomenon that involves a wide range of spatial and temporal scales: from 10s km to 10s cm and from 10s min to 10s msec producing large-scale electron density ‘bubbles’ or ‘plumes’ that develop in nighttime equatorial ionosphere. We will use the first-principles whole atmosphere models WACCM-X and HIAMCM coupled to the ionosphere/plasmasphere model SAMI3 to investigate the onset and evolution of equatorial spread F on a global scale. The earth’s plasmasphere is a cold, relatively dense plasma on closed magnetic field lines extending from ~ 1000 km to several earth radii. Although this region has often been considered to be quiescent, observations suggest that it is often times structured with plasma ducts. The underlying mechanism(s) to generate these ducts is unclear. Again, we will use WACCM-X and HIAMCM coupled SAMI3 to investigate the development of plasmasphere ducts and longitudinal corrugations in the plasmasphere density.

About the Speaker:
Dr. Joseph Huba is a Vice President at Syntek Technologies. Dr. Huba was at the Naval Research Laboratory as a NRC/NRL post-doc (1975 - 1977), contractor (1977 - 1981), and federal employee (1981 - 2018). He was Head of the Space Plasma Physics Section of the Beam Physics Branch at the Naval Research Laboratory (1995-2018) and Head of the Geophysical and Plasma Dynamics Branch at the Naval Research Laboratory from 1983 until 1989. His current research interests include the study of ionospheric and magnetospheric processes and modeling the earth’s ionosphere/plasmasphere system. He has performed numerous linear and nonlinear studies of a wide variety of plasma instabilities (most notably the lower-hybrid-drift instability). He has written a 3D Hall MHD code (VooDoo) based upon a novel algorithm that he developed to study 2D and 3D Hall magnetic reconnection physics. He has developed (with Dr. G. Joyce) the NRL ionosphere/plasmasphere models SAMI2 and SAMI3 and promoted the SAMI2 Open Source Project. Dr. Huba has over 240 publications in refereed journals in these areas.

The seminar will be conducted in person and simulcast via Zoom; it is free and open to the public. Please check the MIPSE website for additional information and requirements for in-person and remote attendance: https://mipse.umich.edu/seminars_2122.php

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Lecture / Discussion Thu, 06 Jan 2022 10:41:11 -0500 2022-03-23T15:30:00-04:00 2022-03-23T16:30:00-04:00 Electrical Engineering and Computer Science Building Michigan Institute for Plasma Science and Engineering (MIPSE) Lecture / Discussion Dr. Joseph Huba