Faster, more accurate airborne radiation detection

[Marlin]

Faster, more accurate airborne radiation detection

https://news.engin.umich.edu/2026/10/faster-more-accurate-airborne-radiation-detection/

[Core Content]

Researchers from the University of Michigan and the Paul Scherrer Institute developed a physics-based Bayesian framework for airborne radiation detection. During six-second helicopter flyovers, the method accurately identified single and mixed radioactive sources. It pinpointed locations within two meters and estimated activities within two percentage points.

Airborne measurements provide data during radiological emergencies such as reactor meltdowns when ground access is restricted. By splitting gamma-ray scattering calculations into atmospheric and aircraft components, the algorithm reduces processing times from hours to microseconds. This capability aids emergency response operations, environmental remediation, and routine monitoring around nuclear facilities.

A new method detects radiation from single or mixed sources during six-second helicopter flyovers, improving the toolkit for radiological emergency response.

A new radiation detection method correctly identified single and mixed radioactive sources during six-second helicopter flyovers, according to a University of Michigan Engineering and Paul Scherrer Institute study.

The physics-based Bayesian framework pinpointed radiation sources within two meters and estimated their activities within two percentage points of their true values—an unprecedented level of detail compared to previous methods.

Read the full article at news.engin.umich.edu:
https://news.engin.umich.edu/2026/10/faster-more-accurate-airborne-radiation-detection/