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
System and method for updating firmware
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
Case for electronic device
Detection system and method for mobile device application
Secure mobile ad hoc network
Method and apparatus for decoding/encoding a video signal with inter-view reference picture list construction
Touchscreen with Z-velocity enhancement
  Randomly Featured Patents
Remote station
Therapeutic roller/walker
Method for fixing a prism and a solid-state image pickup element
Multi-layer sliding bearing having excellent fretting property
Thermal printer capable of reproducing halftone image
Method and apparatus for replaying recording medium from any bookmark-set position thereon
Liquid crystalline alkenylcyclohexene derivative, liquid crystal composition and liquid crystal display element
Flashlight
Composite stacked semiconductor device with contact plates
MRI compatible surgical biopsy device