Final qualification of an industrial wide range neutron instrumentation in the OSIRIS MTR reactor

摘要

This work deals with the final qualification of the IRINA in-core neutron flux measurement system in the MTR OSIRIS reactor. A specific irradiation device has been set up to validate the last changes in the complete system (electronic, transmitting cable and monitor). Experimental results shows the IRINA measurement system meet entirely the in-core reactor conditions requirements: a thermal neutron flux from 10⁷ n.cm⁻².s⁻¹ up to 1014 n.cm⁻².s⁻¹ and a temperature of 300°C during a minimum operating time of 1000 hours.