Multi-Rocket Piston Model for 3D Asymmetry Analysis in NIF Implosions

A computational model dataset for studying three-dimensional asymmetries in inertial confinement fusion implosions at the National Ignition Facility. The dataset was created by D T. Casey et al. from the Plasma Science and Fusion Center Dataverse and was last updated on March 1, 2026. It uses an approximate rocket-piston approach to enable computationally inexpensive 3D post-shot analysis compared to full hydrodynamic simulations.

Use Cases

• Forward-fitting experimental data based on approximate 3D image and diagnostic outputs mentioned in the description.
• Applying machine learning to interpret measurements based on synthetic diagnostic data generated by the model.
• Surveying 3D post-shot implosion performance based on the computationally inexpensive rocket-piston discretization method.
• Analyzing hotspot velocity and asymmetry based on the model's simulation of stagnation and peak burn conditions.

Strengths

• Model is designed for computationally inexpensive 3D analysis, enabling wider survey work.
• Includes an approximate hohlraum model and post-processing for realistic synthetic diagnostic data.
• Authored by a large team of recognized researchers from the Plasma Science and Fusion Center.

Limitations

• Description metadata is limited; actual data quality, column definitions, and file formats require manual inspection after download.
• Row count and dataset size are unknown, which may limit suitability assessment for specific computational tasks.
• The model is an approximate approach, which may trade some accuracy for computational speed.

Provenance

Source

Plasma Science and Fusion Center Dataverse

Collection Method

Computational model using multiple rocket-pistons discretizing spherical implosions, coupled through central hotspot pressure.

Time Range

Model is based on recent NIF experiments, but specific temporal coverage is not stated.

Freshness

Last updated 2026-03-01 11:52:01; freshness should be verified.

Geography

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