# LLNL study maps tolerance limit for fusion-target flaws

_Monday, August 24, 2026 at 7:00 PM EDT · Science · Latest · Tier 2 — Notable_

![LLNL study maps tolerance limit for fusion-target flaws — Primary](https://scx2.b-cdn.net/gfx/news/2026/research-shows-how-fus.jpg)

Lawrence Livermore National Laboratory researchers report that simulated inertial-fusion-energy implosions held their yield as controlled asymmetry increased until reaching a critical threshold, after which performance fell sharply and ignition failed. The team scaled the design behind the National Ignition Facility's first ignition shot to a capsule designed to produce about 30 megajoules, using 2D radiation-hydrodynamics simulations. The work examines how future plants could balance yield against tolerance for target and laser imperfections.

## Sources

- [Phys.org - latest science and technology news stories](https://phys.org/news/2026-08-fusion-reactions-survive-flaws.html)

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Retrieved: 2026-08-26T03:52:02.244Z
Publisher: Tech & Business (techandbusiness.org)