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
Sub-LUN input/output profiling for SSD devices
Polypeptides and immunizing compositions containing gram positive polypeptides and methods of use
Method and apparatus for charging a power pack of a portable electronic device
Wound dressing with a discontinuous contact layer surface
Pixel circuit
Method for specifying control curve parameters for controlling climatic environmental conditions of climate-controlled enclosed spaces
Personal alarm device for headwear for proximity detection
  Randomly Featured Patents
Apparatus for conducting air into bags of vacuum cleaners
Main distributing strip for incoming and outgoing electrical lines
Low-radiation, photocurable and thermosetting resin composition and cured film thereof
Storage capacitor structure for LCD and OELD panels
Flying head slider and suspension assembly with stress relief for controlling slider crown thermal sensitivity
Intake system for rotary piston engine
Information processor, TV system, control method and program
Bubble floating type separator
Electro-optical angular displacement
Supply for a subscriber control system