Compact radioactive aerosol monitoring device for early warning networks

In the frame of the European metrological research project MetroERM, a compact portable aerosol sampling and measurement device was developed at Jožef Stefan Institute. The system incorporates a CeBr₃ scintillation detector positioned centrally within a concertinaed filter assembly and an improved high flow rate air pump. It provides continuous on-line low level airborne radioactive particulate monitoring for field station use via 3 G network communications. The calibration of the device was performed at National Physical Laboratory (NPL) with filters, spiked with a certified mixed nuclide solution. Additionally first tests were performed in an environment with an elevated radon concentration. - Highlights: • A compact portable aerosol sampling device was developed at Jožef Stefan Institute. • The system incorporates a CeBr₃ scintillation detector positioned centrally within a filter assembly and high flow rate air pump. • The calibration of the device with filters, contaminated with CRM was performed at National Physical Laboratory. • First tests were performed in the environment with elevated radon concentrations.