Development and Experience of Tritium Control in Heavy Water Reactor “Fugen”

Tritium generates mainly from the activation of the heavy water moderator in Fugen. Its control is a key issue for heavy water handling technologies in Fugen. This paper describes the equipment considerations, methods of tritium monitoring, radiation work control, gaseous/liquid emission control, and personnel dose management for tritium that were developed and improved through the more than twenty years' operation of the Fugen Nuclear Power Station.