Development of Portable irradiation embrittlement Detection system for Barkhausen noise RPV Steel

The development of clean energy nuclear power can make environmental protection and economic growth in a win-win situation. The Reactor Pressure Vessel (RPV) is an important factor restricting the service life of the nuclear power plant. In order to estimate the service life of RPV to guarantee the nuclear safety, this paper introduces the design of portable RPV irradiation embrittlement detection system based on Magetic Barkhausen Noise (MBN). TMS320F28335 is taken as the core part of system hardware. The system includes the excitation power supply, the sensor, the conditioning circuit, the collection and the display circuit, the power supply module. The test of thermal aging and proton irradiation is carried out to verify the reliability of the testing system.