Neutron Scans May Verify Warheads Without Revealing Secrets

Researchers at an undisclosed location have designed a system to verify nuclear warheads using neutron beams and analog cryptography. They explored a method to confirm the authenticity of warheads during dismantlement. This aims to satisfy arms control treaties without sharing sensitive weapons data.

The team focused on Neutron Resonance Transmission Analysis. This technique identifies materials by how they absorb neutrons at specific energies.

Most radioactive materials, called actinides, have unique “fingerprints” when scanned with neutrons. Instead of creating a detailed scan, their system only counts neutrons within pre-defined energy ranges.

This new approach uses entirely physical, analog components. This makes the measurement process transparent and verifiable by multiple parties.

The researchers believe this transparency builds trust. It could enable more ambitious arms control agreements.

The current system is a proof-of-concept. Further development and testing are needed to assess its practicality for real-world verification.