New Method Detects Radioactivity Quickly from Helicopters
Researchers developed a method that detects radioactivity from helicopters in seconds, improving response time during emergencies.
NEWSWISE, Oct 27: Researchers from the University of Michigan and Switzerland’s Paul Scherrer Institute developed a method for rapid detection of radioactivity from helicopters. This method can accurately identify and measure radioactive sources from nearly 100 feet in just seconds.
Field tests in Switzerland successfully detected known radioactive sources during a helicopter flyover. The system can pinpoint a radioactive source’s location within 6.6 feet and estimate the activity level within two percentage points of the accurate value.
Lead author David Breitenmoser explained that the method employs a specialized Bayesian inference framework to enhance the interpretation of gamma rays emitted by radioactive materials. Traditional methods take hours or even days to analyze data, while this new approach processes it in microseconds. Breitenmoser remarked, “I was surprised how much efficiency we could gain by reorganizing the physics rather than simply using more computing power.”
The technique improves upon existing detection methods that often struggle with blurred signals caused by scattering of gamma rays traveling through air and bouncing off the helicopter’s metallic surfaces. By separating the scattering processes into two parts, researchers conducted efficient simulations, resulting in quicker and more precise analyses.
This innovative detection method has applications beyond emergencies, including routine monitoring of nuclear facilities and environmental assessments. Rapid identification of radioactive materials during emergencies, such as a nuclear reactor accident, can help first responders make quick decisions about evacuations and protective measures.
“What excites me most is the combination of speed and quantitative detail that could make airborne measurements substantially more useful in both emergency response and routine monitoring,” Breitenmoser stated. The research team published their findings in the journal Nature Communications.
Bhupendra Singh Chundawat is a seasoned technology journalist with over 22 years of experience in the media industry. He specializes in covering the global technology landscape, with a deep focus on manufacturing trends and the geopolitical impact on tech companies. Currently serving as the Editor at Udaipur Kiran, his insights are shaped by decades of hands-on reporting and editorial leadership in the fast-evolving world of technology.