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15.1 Mini-Conference on Machine Learning, Data Science, and Artificial Intelligence in Plasma Research
Organizers: J. Luc Peterson (LLNL), Cristina Rea (MIT), Zhehui (Jeph) Wang (LANL), David Humphreys (GA)
Description: The ability of modern experimental and computational plasma science to generate large quantities of complex data, combined with advances in mathematics, analytics and computation, has motivated researchers to explore the application of advanced statistical techniques to problems of plasma science. Such technologies include machine learning (ML), artificial intelligence, dataset generation and curation, and predictive analytics, in both experimental and computational contexts. In this mini-conference we aim to stimulate an already lively interest from the community by providing a common forum for experts in plasma physics and machine learning to share data science techniques and applications thereof to problems of interest.
15.2 Mini-Conference on Plasma-Material Interactions in Fusion Devices: ITER and Beyond
Organizers: Karl Hammond (U Missouri), Ilon Joseph (LLNL), Sergei Krasheninnikov (UCSD), Ane Lasa Esquisabel (U Tennessee, Knoxville)
Description: The SciDAC (Scientific Discovery through Advanced Computing) on plasma material interactions was selected last year for 5-year project funding, building upon a successful 5-year prior project. Our milestone focuses on high-performance computing with coupled boundary plasma physics and materials surface models to predict fuel recycling and tritium retention in the ITER divertor for D–T burning plasma conditions, accounting for erosion, re-deposition, and impurity transport in the plasma boundary, as well as an initial evaluation of the influence of material deposition on recycling and retention. We believe some GEC researchers are also involved in the studies of plasma-material interactions and there are enough common issues and overlapping interests that we could learn a lot from each other.
15.3 Mini-Conference on Magneto-inertial Fusion Science and Technology
Organizers: Kyle Peterson (Sandia Labs), Johathan Davies (U Rochester), Patrick McGrath (ARPA-E)
Description: To highlight recent advances in science, technology, and fundamental understanding in the field of Magneto-inertial fusion (MIF). MIF is a growing research field, not just in the United States, but internationally as well. In recent years, there has been some exciting developments in the field such as the demonstration at Sandia Labs that pre-heated and pre-magnetized plasmas can be relatively slowly compressed to thermonuclear conditions. There will be one MIF poster session.
15.4 Mini-Conference on the Crossover Between High-energy-density Plasmas (HEDP) and ultracold neutral plasmas (UNP)
Organizers: Michael Murillo (Michigan State U), Scott Bergeson (Brigham Young U)
Description: High-energy-density plasmas (HEDPs) play a key role in national security and energy research. Creating, diagnosing, and understanding these fusion-class systems requires the best experimental techniques, advanced plasma theories, and cutting-edge computer simulations. The experimental conditions are difficult or perhaps impossible to measure with enough certainty to effectively guide theoretical development. Ultracold neutral plasmas (UNPs) operate in a completely different region of phase space. Yet with temperatures of a few K and densities of 109-1012 cm-3, they are also weakly non-ideal. Using precision spectroscopy tools in this quiescent environment, the collisional properties of non-ideal plasmas can be measured. These measurements can be used to benchmark MD simulations, to test advanced formulations of the Coulomb logarithm beyond the Landau-Spitzer model, and to guide theoretical developments at the frontier of plasma science. While both HEDP and “complex” plasmas are traditionally part of DPP, this mini-conference will enable a focused opportunity to explore the surprising cross-over of these two fields. There will be one poster session.
15.5 Mini-Conference on Nonlinear Waves and Processes in Space Plasmas
Organizers: Mark Koepke (West Virginia U), David Knudsen (U of Calgary, Canada), Sergey Savin (Space Research Inst, Russia), Gregory Howes (U Iowa), William Daughton (LANL)
Description: To provide a forum for the development of modeling methods and tools, to foster cross-fertilization among different subdisciplines of application, and most crucially to enable communication between the theorists who build the models and simulations and the experimentalists who apply them. Nonlinear waves, wave-wave interactions, and chaos are believed to play dominant roles in the heating and acceleration of charged particles and generating turbulence in space, astrophysical and laboratory plasmas. These waves represent the electromagnetic signature of solar-terrestrial coupling and are useful for forecasting and monitoring of space weather. There will be one poster session.