Abstract
Traditionally, non-parameter spectrum estimation has been widely used in the analysis of neutron noise obtained from ex-core detectors for reactor structure monitoring. Because a limited data results in a severe bias, the resolution is not adequate for a monitoring application. The Burg spectrum estimation of the parameter method distinctively traces the modes of the reactor's internal structures with the order of 160 tested by χ 2 (chi) distribution and F distribution. Fuel 1st mode, 2nd mode, beam mode and shell mode in association with a reactor's internal vibration are more discernable than the spectrum estimator method proposed in ASME-OM/SG part 5 with the neutron noise signals of Ulchin 1. The result gives us the early information of the joint condition between thermal shield and core support barrel.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Pressure Vessels and Piping
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
