On-Line Monitoring Technology Study of Heavy Water Concentration Base on Density Method

Heavy water is moderator material of the heavy water reactor, the concentration affects the nuclear property of the reactor, which could be measured after the reactor closed. To change the situation, standard samples of different concentration of heavy water were measured on the density, a working curve of the density and concentrations of heavy water was established, and the program of heavy water on-line monitoring was designed, then the heavy water concentration could be measured when the reactor running.