Nuclear reactor power distribution monitoring system and method including nuclear reactor instrumentation system
First Claim
1. A nuclear reactor instrumentation system, comprising:
- a plurality of in core nuclear instrumentation assemblies arranged in a gap between a number of fuel assemblies charged in a reactor core, said in core nuclear instrumentation assemblies each including a fixed type neutron detector assembly and a fixed type gamma thermometer assembly, wherein said fixed type neutron detector assembly comprises N fixed neutron detectors dispersively arranged in a core axial direction with a predetermined interval L, where N is an integer greater than and equal to four, and said fixed type gamma thermometer assembly comprises at least 2N−
1 fixed type gamma ray heat detectors arranged in the core axial direction such that N of the at least 2N−
1 fixed type gamma ray heat detectors are arranged at the same core axial position as the fixed type neutron detectors and a reminder N−
1 of the fixed type gamnma ray heat detectors are arranged at an intermediate position in the core axial direction between said fixed type neutron detectors;
a power range detector signal processing device operatively connected to said fixed type neutron detector assemblies through signal cables; and
a gamma thermometer signal processing device operatively connected to said fixed type gamma thermometer assembly of the in core nuclear instrumentation assembly through a signal cable.
1 Assignment
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Accused Products
Abstract
A nuclear reactor instrumentation system including a plurality of in core nuclear instrumentation assemblies arranged in a gap between a number of fuel assemblies charged in a reactor core. The income nuclear instrumentation assemblies each include a fixed type neutron detector assembly having a plurality of fixed type neutron detectors dispersively arranged in a core axial direction and a fixed type gamma thermometer assembly having a plurality of fixed type gamma ray heat detectors arranged at least in a same core axial direction as the fixed type neutron detectors. A power range detector signal processing device is operatively connected to the fixed type neutron detector assemblies through signal cables. A gamma thermometer signal processing device is operatively connected to the fixed type gamma thermometer assembly of the in core nuclear instrumentation assembly through a signal cable.
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Citations
4 Claims
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1. A nuclear reactor instrumentation system, comprising:
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a plurality of in core nuclear instrumentation assemblies arranged in a gap between a number of fuel assemblies charged in a reactor core, said in core nuclear instrumentation assemblies each including a fixed type neutron detector assembly and a fixed type gamma thermometer assembly, wherein said fixed type neutron detector assembly comprises N fixed neutron detectors dispersively arranged in a core axial direction with a predetermined interval L, where N is an integer greater than and equal to four, and said fixed type gamma thermometer assembly comprises at least 2N−
1 fixed type gamma ray heat detectors arranged in the core axial direction such that N of the at least 2N−
1 fixed type gamma ray heat detectors are arranged at the same core axial position as the fixed type neutron detectors and a reminder N−
1 of the fixed type gamnma ray heat detectors are arranged at an intermediate position in the core axial direction between said fixed type neutron detectors;
a power range detector signal processing device operatively connected to said fixed type neutron detector assemblies through signal cables; and
a gamma thermometer signal processing device operatively connected to said fixed type gamma thermometer assembly of the in core nuclear instrumentation assembly through a signal cable. - View Dependent Claims (2, 3, 4)
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Specification