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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Advanced Real Time Imaging
Presentation Title High-velocity Interactions of Laser-driven Tin Ejecta Microjets via X-ray Radiography
Author(s) Yuchen Sun, J Horwitz, Kyle Mackay, S Ali, J Eggert, B Morgan, Fady Najjar, Hye-Sook Park, Y Ping, J Pino, C Stan, Alison Saunders
On-Site Speaker (Planned) Yuchen Sun
Abstract Scope Ejecta microjets are generated when a shock breaks out from the free surface of a sample and interacts with a surface feature such as a groove or a divot. These jets can travel up to several kilometers per second and be highly destructive and are therefore undesirable in high energy density experiments. Recent studies of laser-driven tin ejecta microjets have demonstrated that two colliding microjets can pass through each other unattenuated or, at higher shock pressures, strongly interact and result in a particle-laden plume. The differences may result from density differences, material phase effects or other complex phenomena. To further investigate, we study the interactions of tin ejecta microjets and additionally the interaction between a microjet and a solid tin substrate through real-time imaging via x-ray radiography to better understand jet interactions. This work will provide new understanding of materials physics driving microjet interaction dynamics. LLNL-ABS-837994. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
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