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
Testing method and system
Mixed reality space image providing apparatus
Semiconductor wafer, light-receiving element, light-receiving element array, hybrid-type detection device, optical sensor device, and process for production of semiconductor wafer
N-type carrier enhancement in semiconductors
Nerve stimulation device
Optical transport having full and flexible bandwidth and channel utilization
Carbazole derivative, light-emitting element material and organic semiconductor material
  Randomly Featured Patents
System and method for writing HDD depending on direction of head skew
Clamp for securing a pipe to a supporting structure
Method for performing a spectroscopic analysis on a polymer sample, and related articles
Instruction set to instantiate an effect on a time container
Method and system for termination blocking of message delivery service
Stand air purifier
Electrodes made with disordered active material and methods of making the same
Internal combustion engine driven generator
Dress weight tube sock with mock rib leg and method of knitting
Zig-zag ball