Data acquisition and control system for a heavy water detritiation plant

The importance of detritiation of heavy water from CANDU-type reactors is well known, as is the implications of detritiation in fusion processes and installations. The nature of the fluids that are processed in detritiation requires the operation of the plant in maximum security conditions in order to protect the working staff and environment. The paper presents how the data acquisition and control system could be made for an experimental heavy water detritiation plant. The plant must be designed to be operated without any working staff in the technological space. The purpose of the security and control system is to ensure for the population an irradiation risk below the prescription limits. The radiological risk is the tritium leakage that can be gas, vapor or liquid.