Context
After the Fukushima nuclear accident, the Canadian Nuclear Safety Commission (CNSC) released Recommendation 5c which asked for the improvement of tools to provide off-site authorities with automated real-time stations, appropriate back-up power, redundant communication channels etc. For the Bruce Power nuclear power plant (BP), the largest nuclear generating station in the world, it became essential to collect information about the composition of nuclides. Moreover the system should be able to measure and operate reliably even with gamma dose rate up to 1 Sv/h, as seen during the Fukushima event. Besides long-term reliable operation under harsh Canadian weather conditions, a key issue was the safe operation and data transmission during emergency conditions.