LASNEX Code
Serves as the baseline modeling software for high-energy-density physics and weapons stewardship.
01 Definition
02 Detailed_Analysis
Developed at Lawrence Livermore National Laboratory, LASNEX is a 2D radiation-hydrodynamics simulation code originally created to model laser-matter interaction, thermal transport, nuclear burn, and radiation transport in inertial confinement fusion (ICF) targets. It has played a central role in both nuclear weapons stockpile stewardship modeling and civilian magneto-inertial/laser fusion research.
03 Key_Facts
- ▸ Developed at Lawrence Livermore National Laboratory (LLNL).
- ▸ Simulates two-dimensional radiation transport and hydrodynamics in dense plasmas.
- ▸ Applied across National Ignition Facility modeling and Stockpile Stewardship.
04 Deep_Dive_Intelligence
Overview
LASNEX is a 2D radiation-hydrodynamics code developed at LLNL for laser fusion (ICF) simulations. LASNEX is one of the primary simulation tools for the National Ignition Facility (NIF) and has been used for decades of ICF research.
Dual-Use Application
LASNEX is one of the seven dual-use technologies:
- Fusion application: LASNEX has been used for PJMIF (Plasma-Jet-Driven Magneto-Inertial Fusion) simulations.
- Weapons application: LASNEX is used for weapons-related ICF work at NIF, which is a major component of the Stockpile Stewardship Program.
LASNEX exemplifies the dual-use nature of ICF simulation codes — the same code that simulates fusion energy also simulates weapons physics.
06 Related_Terms (2)
07 Related_Entities (3)
08 Timeline_Mentions (3)
Nuclear Testing Moratorium
The U.S. establishes a moratorium on underground nuclear testing, leading to the creation of the science-based Stockpile Stewardship Program (SSP).
historical-contextMACH2 Explosive Model Developed
John J. Watrous and Michael H. Frese of NumerEx develop a dynamic explosive model for the MACH2 code to simulate explosive magnetic flux compression generators for LANL.
fusion-physicsStockpile Stewardship Program Created
SSP created via PDD/NSC 15. ICF is 'major component.' NIF, Z Machine, Atlas PRIMARY=weapons, SECONDARY=fusion. Provides alternative explanation for fusion-weapons dual-use.
Classified Programs09 FAQ
What is LASNEX Code? ▾
Why does LASNEX Code matter? ▾
How does LASNEX Code relate to other concepts? ▾
When did LASNEX Code appear in the research timeline? ▾
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Quick_Facts
- Category
- Technology
- Aliases
- LASNEX Code, lasnex-code, LASNEX
- Sources
- 0
- Related Terms
- 2
- Graph Entities
- 3
- Timeline Events
- 3