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National Security Directorate

Radiation Detection and Nuclear Sciences

Researchers at PNNL conduct a variety of fundamental and applied research projects leading to new capabilities in trace radionuclide detection, environmental assessment and remediation, treaty verification and proliferation detection and prevention. We draw on extensive expertise in radiological science and engineering to develop and deploy innovative yet practical solutions for our country's most pressing challenges for the Department of Homeland Security, the National Nuclear Security Administration, other government agencies and industry. Our instruments and facilities have found application in environments ranging from water wells and nuclear reactor cores to aircraft and spacecraft. Field sampling and measurement campaigns have involved urban characterization, border control, soil characterization, waste characterization, facility decontamination and decommissioning, aqueous measurements and atmospheric measurements.

For more information see the Radiation Detection & Nuclear Sciences group website or contact Randy Hansen at (509)376-3868 or

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