Water-Level Measurements Using Ex-Core Neutron Detectors at Farley Unit One. Final Report

摘要

This report documents the theory, tests, results, and analyses of water level measurement tests performed at the Farley Unit One nuclear power plant in November 1980. Measurements were made during a normal plant outage using an ex-core neutron detector system placed on top of the reactor vessel head. The data indicate that this system was able to indicate when the water level in the vessel approached to within approximately four feet of the top of the reactor core. Two-dimensional computer calculations simulating the experiment agree well with trends and results of the measured data. (ERA citation 07:043634)