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: TO05.00013 : Ablation of a solid obstacle with a radiative shock driven by gas gun plate impact*
11:54 AM–12:06 PM
Presenter:
Emilio Escauriza
(First Light Fusion Ltd)
Authors:
Emilio Escauriza
(First Light Fusion Ltd)
Rosie Barker
(First Light Fusion Ltd)
Martin Read
(First Light Fusion Ltd)
Guy C Burdiak
(First Light Fusion Ltd)
Hugo W Doyle
(First Light Fusion Ltd)
Nicholas Hawker
(First Light Fusion Ltd)
We report on an experimental platform to produce a radiative shock driven purely hydrodynamically, using a two-stage light gas gun. The initial shock from a 6.5 km/s plate flyer impact is amplified and increased in strength inside the 'amplifier' target. The release from the amplifier exit drives an 80km/s shock into a gas cell, which is imaged using streaked optical shadowgraphy.
A 125 μm aluminium wire is placed inside the gas cell 2 mm from the amplifier exit and is heated by the radiation from the shock. Simulations using Helios [2017 Prism Computational Sciences, Inc.] and Hytrac predict over 200 μm of expansion when a 250 mbar argon gas fill is used. Comparisons to experimental data are presented.
*Funded by First Light Fusion Ltd
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