Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session TO05: High-energy-density Hydrodynamics
9:30 AM–12:30 PM,
Thursday, October 20, 2022
Room: Ballroom 111 B
Chair: Pawel Kozlowski, LANL
Abstract: TO05.00009 : Experimental Design for Late Time Multimode Rayleigh-Taylor Instability with Controlled ablation effects*
11:06 AM–11:18 AM
Presenter:
Assaf Shimony
(University of Michigan)
Authors:
Assaf Shimony
(University of Michigan)
Heath J LeFevre
(University of Michigan)
Sonya C Dick
(University of Michigan)
Matthew Trantham
(University of Michigan)
Guy Malamud
(Nuclear Research Center Negev)
Eric Johnsen
(University of Michigan)
Carolyn C Kuranz
(University of Michigan)
It was observed in a previous experiment on the national ignition facility (NIF) that high energy fluxes can alter the evolution of RTI in the single mode case. In this work we present a new platform on NIF to study this effect on the self-similar multimode case. The SN ejecta and the CSM are simulated by a dense material (plastic) and a light material (foam), respectively. In a series of shots, we can adjust the foam properties (opacity, density) and control the amount of radiation flux, which originated at the foam and ablates the plastic. We designed a direct drive and face-on radiography for measuring the bubble size statistics and can be compared to the theoretical predictions for bubble merger/competition mechanisms.
*This work is supported by the National Science Foundation through the Basic Plasma Science and Engineering program NSF 16-564, grant number 1707260 and in part by the Lawrence Livermore National Laboratory under Subcontract No. B642551. The work of H. L. is supported by the National Science Foundation MPS-Ascend Postdoctoral Research Fellowship under Grant No. 2138109. This work is funded by the U.S. Department of Energy NNSA Center of Excellence under cooperative agreement number DE-NA0003869.
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