International standardization of instruments for neutron irradiation tests

Tanimoto, Masataka ; Cho, M.*; Shibata, Akira ; Lee, C.*; Nakamura, Jinichi ; Park, S.*; Tsuchiya, Kunihiko ; Choo, K.*

The JMTR in JAEA and HANARO in KAERI are the foremost testing/research reactors in the world and these are expected to contribute to many nuclear fields. As a part of instrument development in irradiation field, information exchange of instruments started from 2010 under the cooperation agreements between KAERI and JAEA. To get measurement data with high accuracy for fuel and material behavior studies in irradiation tests, many types of measuring equipments have been developed; these are the multi-paired thermocouples, the Linear Voltage Differential Transformer (LVDT) type gas pressure gauge and Self-Powered Neutron Detector (SPND). In this presentation, the instruments developed in JMTR and HANARO are introduced and cooperation experiments as future plan are discussed for international standardization of the instruments in the Material Testing Reactors.