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DOE OSTI · 2575579

A database and meta-analysis on the performance of exploding pusher implosions conducted at OMEGA

Adrian, Patrick John [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000186821480)·Gatu Johnson, M. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center] (ORCID:0000000223831275)·Kabadi, N. V. [Univ. of Rochester, NY (United States). Laboratory for Laser Energetics] (ORCID:0000000273153636)·Sutcliffe, Graeme D. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000234988040)·Frenje, J. A. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center] (ORCID:0000000168460378)
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Abstract

A database of 222 exploding pusher implosions conducted at the OMEGA Laser Facility is presented. The dataset consists of glass-shell capsules filled with varying pressures of D 2 , T 2 , and 3 He, which were imploded using square laser pulses with intensities ranging from 1 to 1 × 10 15 W/cm 2 . The database includes measurements of bang times, ion temperatures, and yields from the DD, D 3 He, and DT fusion reactions. A semi-analytic exploding pusher model is introduced, which effectively captures the observed trends in the data. This model predicts that the measurements scale according to a power-law relation based on the initial capsule and laser conditions. A generalized power-law scaling relation is directly fit to each dataset, providing a useful interpolation of the entire database. Overall, the database provides a valuable resource to estimating bang times, temperatures, and yields for the design of future experiments. Additionally, it provides a diverse set of data for validating more advanced implosion physics models.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGYHelium reactionsHigh energy density physicsHydrodynamics simulationsLasersNeutron sourcesNuclear fusionNucleosynthesisPhysics - Plasma physicsShock wavesThermodynamic propertiesTritium

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Adrian, Patrick John [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000186821480), Gatu Johnson, M. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center] (ORCID:0000000223831275), Kabadi, N. V. [Univ. of Rochester, NY (United States). Laboratory for Laser Energetics] (ORCID:0000000273153636), Sutcliffe, Graeme D. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000234988040), Frenje, J. A. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center] (ORCID:0000000168460378). 2025-07-03. A database and meta-analysis on the performance of exploding pusher implosions conducted at OMEGA. https://doi.org/10.1063/5.0259910

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