SELF-CALIBRATING, HIGHLY ACCURATE, LONG-LIVED, DUAL RHODIUM VANADIUM EMITTER NUCLEAR IN-CORE DETECTOR

摘要

The present invention provides a method and an apparatus for calibrating a first self-powered neutron detector for long term use in a nuclear reactor core with a second self-powered neutron detector, where the emitter material of the second self-powered neutron detector has a neutron absorption cross-section that is greater than the neutron absorption cross-section of the first emitter material for the first self-powered neutron detector.