A single Detection Station can warn different Central Stations providing redundancy for critical infrastructures monitoring. When redundancy is less critical, a single Central Station can communicate with several Detection Stations for cost effective solutions. Therefore, the ENMS concept is designed for native scaling-up to a accommodate small scale and local as well as nationwide – or even worldwide – radiological monitoring networks.
ENMS Probe Application Note
For more than 10 years, IRE has developed a specific probe for environmental water monitoring based on gamma spectrometry. This know how has been adapted for other
type of measurement like dose rate in air measurement IRE has now recently developed the interface to use a very performance dose rate probe model GDDS on the existing ENMS platform to perform on-line air dose rate monitoring.
The GDDS instrument performs dose rate measurement in the air using two GM (Geiger Mueller) detectors. The measuring range is between 1E-09 to 1 Sv/h. The probe runs itself the calculation and conversion to provide the results in Sv/h. In order to optimize the measurement accuracy, the acquisition strategy is based on a sliding average. A
watchdog mode is set to detect any abnormal changes of the dose rate.
In normal operation, a measurement is taken every 10 seconds where the obtained value is averaged with the previous ones. The probe select automatically the amount of 10s measurement needed to have an accurate averaged value. Once calculated, the data is available for the acquisition system (ENMS). This insures a good measurement statistic while keeping on line surveillance.