Experience as a Tool for the Design of Gaseous Effluents Stack Monitors

SCARINCI, IGNACIO; FERNANDEZ BALDIS, FEDERICO; NASSIF, EDUARDO; DI TADA MARIANA

Viena

Conferencia; Science and Tecnology 2017 Conference; 2017

CTBTO

The accurate measurement of the noble gases released by a Radioisotope Production Facilities (RPF) requires the design of an optimized monitoring system. The design process must take into account the characteristics of the radiation detectors and the engineering variables involved in the measurement. In addition, the field start-up experience is a key feature for the evolution and optimization of the new monitoring system.INVAP has a 25 year experience in the design, construction and start-up of stack gaseous effluent monitoring systems. The hands-on knowledge acquired during these years has allowed to reach a very good final product, that can be installed either in Radioisotope Production Facilities (RPF), Nuclear Research Reactors or any other nuclear facility in which the gas released through the stack must be monitored.The stack gaseous effluent monitor has been optimized for the real-time measurement the radioxenon releases to the atmosphere. Characterization of emissions from RPFs is of great interest for CTBT, given its need to know the atmospheric background because the fact that RPFs are the responsible of most of the produced background.This poster presents the evolution of the INVAP stack monitor. The main features taken into account for the design are described in a graphic way following a historical development.