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The Lawrence Livermore National Laboratory has made progress on a project to raise the laser energy at the National Ignition Facility to better assess and modernize the U.S. nuclear weapon stockpile, according to the National Nuclear Security Administration.
Dubbed the Enhanced Fusion Yield Capability project, increased laser power is meant to build upon the repeated success at NIF wherein more fusion energy is produced during fusion ignition than the input by laser to kick off the reaction.
LLNL first achieved fusion ignition in 2022 and remains the sole facility worldwide to have reached ignition. Since then, LLNL has achieved fusion ignition multiple times with higher yields.
Through the Enhanced Fusion Yield Capability project, the goal is to raise NIF’s peak recurring laser energy from 2.2 megajoules to 2.6 megajoules, according to a statement by NNSA officials.
The project supports the NNSA’s nuclear stockpile modernization mission, they added.
“Raising NIF’s laser energy expands the high-energy-density physics regimes that are accessible, allowing scientists to better replicate and study the extreme pressures and temperatures relevant to our nuclear stockpile,” NNSA officials told Livermore Vine.
“Building on the historic achievement of fusion ignition, we are excited to work with NNSA to enhance NIF’s capabilities to support our critical national security missions,” LLNL Director Kim Budil said in a statement.
As of mid-April, the Enhanced Fusion Yield Capability project has surpassed phases for its definition and conceptual design, according to NNSA officials. As such, the project received the greenlight on Critical Decision-1.
“The Enhanced Fusion Yield Capability project remains in early stages following CD-1 approval,” NNSA officials told Livermore Vine via email.
“DOE follows a formal capital asset project process for projects of this type,” they added. “The next major step is to establish the project baseline and seek approval to begin construction.”
The Department of Energy and NNSA expedited CD-1 approval for the project, NNSA officials said.
“We expect to continue making efficient progress on this important national security project,” they added.
The operation was expedited thanks to regulatory changes by the U.S. Secretary of Energy Chris Wright last March that “eased construction project burdens at National Labs,” according to the statement.
“The United States holds a decisive scientific advantage over our adversaries,” NNSA administrator Brandon Williams said in the statement. “Thanks to President Trump and Secretary Wright, we are restoring common sense to policymaking, cutting unnecessary bureaucracy, and accelerating the modernization of our nuclear stockpile.”
Officials did not disclose the initial or current timeline or the overall cost of the project and specific construction burdens.
“Efforts like NIF demonstrate that America leads the world, and this project will further strengthen our understanding and confidence in our nuclear deterrent,” Williams said.
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