Paddock, R. W., von der Leyen, M. W., Aboushelbaya, R. et al. (27 more authors) (2023) Measuring the principal Hugoniot of inertial-confinement-fusion-relevant TMPTA plastic foams. Physical Review E. 025206. ISSN 1550-2376
Abstract
Wetted-foam layers are of significant interest for inertial-confinement-fusion capsules, due to the control they provide over the convergence ratio of the implosion and the opportunity this affords to minimize hydrodynamic instability growth. However, the equation of state for fusion-relevant foams are not well characterized, and many simulations rely on modeling such foams as a homogeneous medium with the foam average density. To address this issue, an experiment was performed using the VULCAN Nd:glass laser at the Central Laser Facility. The aim was to measure the principal Hugoniot of TMPTA plastic foams at 260 mg/cm^3, corresponding to the density of liquid DT-wetted-foam layers, and their “hydrodynamic equivalent” capsules. A VISAR was used to obtain the shock velocity of both the foam and an α-quartz reference layer, while streaked optical pyrometry provided the temperature of the shocked material. The measurements confirm that, for the 20–120 GPa pressure range accessed, this material can indeed be well described using the equation of state of the homogeneous medium at the foam density.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © British Crown Copyright 2023/AWE |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 01 Mar 2023 14:10 |
Last Modified: | 06 Nov 2024 01:50 |
Published Version: | https://doi.org/10.1103/PhysRevE.107.025206 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevE.107.025206 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:196932 |
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Filename: PhysRevE.107.025206.pdf
Description: Measuring the principal Hugoniot of inertial-confinement-fusion-relevant TMPTA plastic foams
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