LIFE DETERMINATION DEVICE AND LIFE DETERMINATION METHOD FOR NEUTRON DETECTOR, AND NUCLEAR REACTOR CORE MONITOR

摘要

PPROBLEM TO BE SOLVED: To accurately correct an output from each neutron detector provided insertedly into a practical reactor, by using a history of an observed value in every of the neutron detectors, and to enhance monitoring performance for a nuclear reactor core, using the corrected output of the neutron detector. PSOLUTION: This life determination device 10 for the neutron detector is provided with a computing means 11, and a storage means 12 connected to the computing means 11. The life determination device 10 is also connected to a low power range monitor (LPRM) group 21 as a radiation detecting means, via a multiplxer 22. The life determination device 10 is also connected to a reactor core performance calculating means 31. PCOPYRIGHT: (C)2007,JPO&INPIT