[2F01-05] Reactor Monitor and Measurements

[2F01] Development of high-temperture operational electric parts aiming at adoption to nuclear electronic devices compliant with sevre accident

*Hiroki Miyoshi¹, Junichi H. Kaneko², Takanori Hanada², Taizo Yamawaki⁴, Hitoshi Umezawa³ (1. Graduate School of Engineering, Hokkaido University, 2. Graduate School of Engineering, Hokkaido University , 3. National Institute of Advanced Industrial Science and Technolog, 4. Hitachi, Ltd. Research and Development Group)

Keywords:Severe accident response, Resistance, Capacitor, Tigh Temperature

At present, we are undertaking a project based on prototype development of atmosphere ambient atmosphere monitor (CAMS) for severe accident, diamond gamma ray detector corresponding to operating temperature: 500 ℃, cumulative dose: 10 MGy, diamond field effect transistor Has been successfully developed. Although operation at 300 ° C is required for CAMS, it is aiming at the development of electronic equipment that is used in a reactor containment vessel that operates at 500 ° C in the future. Currently available electronic components such as resistors, capacitors, inductors, etc. are mostly at the maximum operating temperature of about 250 ° C., and various electronic components that operate stably at 500 ° C. are required. In this research, we developed an electronic component that operates at 500 ° C by using a resistor made by depositing Cu - Ni or carbon on a quartz glass by sputtering method and a capacitor made of Al 2 O 3 or ferroelectric as a dielectric We report the behavior of hour (~ 600 ℃). In addition, we report the result of measurement of leakage current at high temperature of FET package developed by AIST