Radiation detection systems

Passive Radon Monitor (PRM)

The principal of RDS developed the methodology for the radon activity concentration monitoring in the soil, air and in water by solid state nuclear track detectors. RDS provides the radon concentration in air monitoring service by nuclear track detectors to the uranium mining industry and caves in Australia.

The Passive Radon Monitor (PRM) is the radon monitoring system that uses the nuclear track detector film Kodak LR-115. The film inside the chamber of the featured blue badge is exposed to the alpha radiation of radon and radon decay products. The alpha track density to the radon activity concentration exposure conversion factor is obtained through the system calibration inside the South Australian EPA Radiation Protection Branch Radon Calibration Chamber.

Typically, the PRM is exposed either in outdoor or indoor air environment for a period of 3 months. Exposed PRMs are sent to RDS for evaluation. The Lowest Limit of Detection (LLD) of measured radon activity concentration by the PRM is about 7 Bq/m3.

Other products in category

• Detection and definition of uranium orebodies below ground by the Nuclear Track Uranium Ore Exploration Tool (NTUOET)
• Long-lived alpha activity monitoring of dust in air
• Radon daughter in air monitoring by the Universal Radon Daughter Monitor (URDM)