重水堆核电厂在线测氚系统抽气方式的改进

重水堆核电厂利用电离室分析技术进行氚浓度监测。为解决其在线实时氚测量系统不能连续对多个区域进行测量的不足，提高测氚系统可靠性，对测氚系统抽气方式进行了改进。在线按序测氚改进后的测量结果，提高了氚浓度测量的准确性和实时性，为核电厂反应堆厂房内的氚泄漏定位和人员辐射防护提供了重要依据。 

Improvement of Online Tritium-in-Air Monitoring System in Heavy Water Reactor Power Plants

The analysis technology for the ion-chamber is used to measure the tritium concentration in heavy water reactor power plants. However, the online tritium-in-air monitoring system cannot measure tritium from multiple areas continuously. The system extraction technology has been modified to improve the system reliability. The modification results indicate that the system obtains accurate and real-time measurement readings, and that it can provide very important evidence for the locating of tritium leakage and the radiation protection of operators in nuclear power plants.