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
Method of preparing MgB.sub.2 superconducting wire and the MgB.sub.2 superconducting wire prepared thereby
Plants and seeds of hybrid corn variety CH979678
Protein purification
Routing of data including multimedia between electronic devices
Operation controlling apparatus
Address generation unit for accessing a multi-dimensional data structure in a desired pattern
Method of and apparatus for image denoising
  Randomly Featured Patents
Magnetic head
Hay loader
Pyrrole-type compounds, compositions, and methods for treating cancer, treating viral diseases and causing immunosuppression
Method of recording at least ternary data on optomagnetic recording medium having a plurality of magnetic layers
Hold-down acceleration device
Surface sand detection monitoring device and method
Structure of capacitor for dynamic random access memory and method of manufacturing thereof
Underwater branching device
Adjustable interlock floor tile
Hard disk, control unit for a disk device, and method for controlling a disk device