Development of Integrated Online Monitoring System for Tritium With Function of Discriminating HTO

During on line monitoring for tritium, in order to monitor both HTO and HT, and eliminate the memory effect at high concentration, the system was developed for monitoring tritium at tritium experimental site. The system was modular in design, and mainly consisted of a weak current measurement module, a data processing module, a tritiated water discriminating module and a memory effect eliminating module. The performance test shows that the stability of the system meets the requirement, the capacity for discriminating HTO is good and it can completely eliminate the memory effect.