Cosmic-ray muons to help evaluate radioactive materials in nuclear fuel debris

Cosmic-ray Muons in Evaluating Radioactive Materials

In 2011, a devastating earthquake and tsunami led to a core meltdown at Japan's Fukushima Daiichi Nuclear Power Plant, resulting in fuel debris containing mixtures of nuclear fuel and other materials.

The scattering method, highly sensitive to high-atomic-number elements like uranium, has been demonstrated as a promising tool for evaluating nuclear materials in fuel debris.

Muon scattering tomography creates images by measuring how muons deflect as they penetrate materials.

After developing a prototype muon scanner, researchers used muon scattering to evaluate nuclear materials in fuel debris, which is crucial for safe handling and storage.

Author's summary: Muon scattering helps evaluate nuclear fuel debris.

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American Institute of Physics American Institute of Physics — 2025-10-15

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