DEVICE FOR MEASURING REACTOR OUTPUT

摘要

PROBLEM TO BE SOLVED: To provide a device for measuring reactor output which enables the highly accurate calibration of a neutron detector for monitoring local output even if any ofγ-ray thermometers are faulty and makes it possible to minimize the number of theγ-ray thermometers to be installed. SOLUTION: In the device for measuring reactor output where detector assemblies are vertically placed in parallel with each other in a reactor core and which is equipped with the neutron detector placed in various vertical positions inside the detector assemblies in order to monitor the local output of the core and a gamma thermometer formed like a bar out of theγ-ray thermometers located in various vertical positions and a heater wire used to calibrate theγ-ray thermometers, two of them are mounted only in the vicinity of the highest and/or lowest end positions of the neutron detector and at most oneγ-ray thermometer is respectively placed in the vicinity of the neutron detector located in positions other than the highest or lowest ends. COPYRIGHT: (C)2006,JPO&NCIPI