The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Jun. 09, 2014
Hitachi-ge Nuclear Energy, Ltd., Hitachi-shi, Ibaraki, JP;
Atsushi Fushimi, Tokyo, JP;
Hitachi-GE Nuclear Energy, Ltd., Hitachi-shi, JP;
Abstract
A neutron monitoring system for a nuclear reactor can correct measured neutron flux by taking into consideration neutron moderation based on whether a neutron detector is fully immersed in coolant water or exposed above the water level. The neutron detector and a water detection sensor are mounted at the same height in the nuclear reactor. The water detection sensor includes a thermocouple and a heating element positioned to heat the thermocouple. A temperature measuring component is connected to the thermocouple. A water existence determining component can determine, based on temperature measured by the temperature measuring component, whether the water detection sensor (and thus the neutron detector) is underwater. A correction component can correct a neutron detection signal from the neutron detector in accordance with whether the neutron detector is below or above the water level.