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First Lightbridge fuel samples removed from INL's Advanced Test Reactor

Started by Marlin, Jun 25, 2026, 12:51

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(Image: Lightbridge)

Lightbridge Corporation has retrieved fuel samples from the Advanced Test Reactor at Idaho National Laboratory following completion of irradiation testing. The samples will undergo a cooling period before researchers begin post-irradiation examination to evaluate performance data. These results will inform future fuel modeling and regulatory licensing efforts for the company's proprietary nuclear fuel technology intended for use in commercial light-water and heavy-water reactors.

QuoteAdvanced nuclear fuel developer Lightbridge Corporation has announced that the first batch of its fuel material samples have been successfully removed from Idaho National Laboratory's Advanced Test Reactor after undergoing irradiation. ;

The fuel material samples were being tested under the Fission Accelerated Steady-State Testing method developed at Idaho National Laboratory, which is described as "an accelerated irradiation technique that uses Highly Enriched Uranium to reach high burnup conditions faster than conventional test methods".

The samples will now be cooled down over the coming months before post-irradiation examination which Lightbridge says will "support the broader testing programme aimed at confirming the safety, performance, and economic advantages of Lightbridge Fuel relative to conventional nuclear fuel used in commercial reactors worldwide".

Read the full article at World Nuclear News:
https://world-nuclear-news.org/articles/first-lightbridge-fuel-samples-removed-from-inls-advanced-test-reactor