Noise Analysis Method for Monitoring the Moderator Temperature Coefficient of Pressurized Water Reactors: II. Experimental

J. D. Herr; J. R. Thomas, Jr.

doi:dx.doi.org/10.13182/NSE90-43

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 108 / Number 4

Noise Analysis Method for Monitoring the Moderator Temperature Coefficient of Pressurized Water Reactors: II. Experimental

J. D. Herr, J. R. Thomas, Jr.

Nuclear Science and Engineering / Volume 108 / Number 4 / August 1991 / Pages 341-346

Technical Paper / dx.doi.org/10.13182/NSE90-43

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Measured neutron noise and thermocouple noise spectra from two commercial pressurized water reactors are presented. The noise spectra from both reactors show similar trends with core burnup, and the moderator temperature coefficient of reactivity can be predicted by calculating the frequency response function between the in-core neutron flux and the core-exit coolant temperature.