Closing Statement

Group Power Cycle Chemistry had examined the published work in the area of water chemistry sensors applied under elevated temperature. As result of surveying the techniques for determining water chemistry at power plants, it was confirmed that high-temperature water chemistry sensors are a key technology determining the conditions of water chemistry in nuclear power plants (NPPs) [1]. IAPWS recognized that there was a requirement for work to be pursued in this field and so prepared the ICRN to assist potential investigators in obtaining sponsorship. Specifically, requirements for development of new sensors and improvement of them for application in operating plants were identified as subjects to be researched. To date (2014), several reports of the development and application of high-temperature sensors have been generated. Electrochemical corrosion potential (ECP) sensors for application under irradiation have been developed in the JMTR in-pile loop at the Japan Atomic Energy Agency; they will eventually be applied in operating NPPs [2]. High-temperature sensors for flow-accelerated corrosion (FAC) based on electrical-resistance measurement have been developed for application in laboratory facilities and thermal-plan