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
Rechargeable battery
System and method for supporting fibre channel over ethernet communication
Key management system
Motion-compensated prediction of inter-layer residuals
Analog to digital converter with increased sub-range resolution
Gas cap removal tool
Organic light emitting diode light source device
  Randomly Featured Patents
Ash tray
Airport taxiway navigation system
Automatic power control system for a code division multiple access (CDMA) communications system
Silver halide grains and photosensitive silver halide photographic materials
Video editing and production console
Process for preparing membranes
Monodisperse spherical metal particles and manufacturing method therefor
Methods of forming diodes
Compound transmission control protocol
Playground structure with circular slide