Foam-lined hohlraum, inertial confinement fusion experiments on the National Ignition Facility
| العنوان: | Foam-lined hohlraum, inertial confinement fusion experiments on the National Ignition Facility |
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| المؤلفون: | O. S. Jones, R. Heredia, M. Schoff, S. A. Johnson, W. W. Hsing, A. Nikroo, Brandon Lahmann, Laurent Divol, Kevin Baker, J. D. Moody, H. Chen, Monika M. Biener, Suhas Bhandarkar, C. A. Thomas, Otto Landen, N. Alfonso, Theodore F. Baumann, Jose Milovich, J. Williams, Nathan Meezan, Nobuhiko Izumi, Alastair Moore |
| المصدر: | Physical Review E. 102 |
| بيانات النشر: | American Physical Society (APS), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Implosion, Laser, 01 natural sciences, Symmetry (physics), 010305 fluids & plasmas, law.invention, Hohlraum, law, 0103 physical sciences, Atomic physics, 010306 general physics, National Ignition Facility, Inertial confinement fusion, Energy (signal processing), Beam (structure) |
| الوصف: | Experiments on the National Ignition Facility (NIF) to study hohlraums lined with a 20-mg/cc $400\text{\ensuremath{-}}\ensuremath{\mu}\mathrm{m}$-thick ${\mathrm{Ta}}_{2}{\mathrm{O}}_{5}$ aerogel at full scale (hohlraum diameter = 6.72 mm) are reported. Driven with a 1.6-MJ, 450-TW laser pulse, the performance of the foam liner is diagnosed using implosion hot-spot symmetry measurements of the high-density carbon (HDC) capsule and measurement of inner beam propagation through a thin-wall $8\text{\ensuremath{-}}\ensuremath{\mu}\mathrm{m}$ Au window in the hohlraum. Results show an improved capsule performance due to laser energy deposition further inside the hohlraum, leading to a modest increase in x-ray drive and reduced preheat due to changes in the x-ray spectrum when the foam liner is included. In addition, the outer cone bubble uniformity is improved, but the predicted improvement in inner beam propagation to improve symmetry control is not realized for this foam thickness and density. |
| تدمد: | 2470-0053 2470-0045 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0b73190be7c1ed4de17e3793951bb42 https://doi.org/10.1103/physreve.102.051201 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....b0b73190be7c1ed4de17e3793951bb42 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24700053 24700045 |
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