Radiation detection systems

Environmental Radon Daughter Monitor (ERDM)

The Environmental Radon Daughter Monitor (ERDM) is a microprocessor based radiation monitoring system that was developed by Radiation Detection Systems (RDS) for the monitoring of the potential alpha energy concentration (PAEC) of radon daughters in the outdoor and indoor environment.

The ERDM can continuously monitor and log data into the microcontroller memory for about 3 months if a 10 min logging option is chosen. If the 60 min logging option is used the system can continuously gather data for about 1.5 years. Monitoring data log is downloaded as a text file into MS Hyperterminal or Putty program.

The ERDM can also be used for sampling of long-lived alpha activity of airborne dust. After completion of the radon daughter monitoring the filter with long-lived dust is removed from the ERDM and alpha counted after a lapse period of no less than 5 days.

Note: The ERDM can be used in the E-monitoring mode if it is coupled with the RDS E-Monitoring Interface. Monitoring data is sent to the Monitoring platform via:

• a) mobile internet (the USB dongle with the SIM is used); or
• b) data cable connected with the client’s internet router; or
• c) client's wi-fi.

Other products in category

• Confine Space Entry Radon Daughter Monitor (CSERDM)
• Continuous Radon Monitor (Flow Through Type) (CRM-FTc)
• Core Gamma Monitor (CGM)
• GPS Scintillometer (GPSSC)
• Low Background Alpha Counter (LBAC)
• Personal & Survey Gamma Radiation Monitor (PSGRM)
• Personal Radon Daughter Monitor (PRDM)
• Scintillometer (SC)
• Spot Radon Daughter Monitor (SRDM)
• Targeting Radon Daughter and Radon Monitor (TRDRM ™)