Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Power distribution measuring system employing gamma detectors outside of nuclear reactor vessel










Image Number 6 for United States Patent #5108694.

A system for measuring the power distribution in a reactor core includes a plurality of gamma detectors disposed outside of the reactor vessel which houses the reactor core. The gamma detectors correspond in number to the number of instrumentation tubes in the fuel assemblies in the reactor core to be sampled. A first plurality of separate flow branches connect the instrumentation tubes with the gamma detectors for routing the flow of coolant from the instrumentation tubes to the gamma detectors so that the gamma detectors can measure the .sup.16 N decay gamma activity in the respective instrumentation tubes of the fuel assemblies. A second plurality of separate flow branches connect a cold leg of the reactor coolant system with the gamma detectors for routing the flow of coolant from the cold leg to the gamma detectors so that the gamma detectors can measure the background gamma activity in the respective instrumentation tubes of the fuel assemblies. Control valves interposed in the first and second pluralities of flow branches are operable to select communication of one or the other of the flows of coolant to the gamma detectors from either the instrumentation tubes or the cold leg.








 
 
  Recently Added Patents
Inhibitors of the mevalonate pathway of Streptococcus pneumoniae
Key management using quasi out of band authentication architecture
Display screen or portion thereof with graphical user interface
Method and system for shared high speed cache in SAS switches
Oscillation circuit
Method for manufacturing a substrate for a display device
Expression of dirigent gene EG261 and its orthologs and paralogs enhances pathogen resistance in plants
  Randomly Featured Patents
System and method for altering time frame of date dependent information featuring a main database for storing information exclusively in local time
Printer frame structure for simplifying record medium feeding attachment
Piezoelectric film and method of manufacturing the same, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular
Simplified tie restraint
Star of David flying disc
Device and method of reducing bias flow in oscillatory ventilators
Method and composition for adhering to tooth structure
Circuit for generating a constant high voltage for CRT deflection in response to multi-frequency horizontal sync input signal
Combination power and communication electrical wall terminal
Radiographic interpretation trainer/test system