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
Multiple secure elements in mobile electronic device with near field communication capability
Interactive program guide systems and processes
Substantially aligned boron nitride nano-element arrays and methods for their use and preparation
Starch networks as absorbent or superabsorbent materials and their preparation by extrusion
Transitional replacement of operations performed by a central hub
System and method for improving cache efficiency
Method and apparatus for transcoding and transrating in distributed video systems
  Randomly Featured Patents
Methods for making antistatic fibers [and methods for making the same]
LED alignment points for semiconductor die
Implantable medical housing
Apparatus for detecting torque for oscillation-type electric dynamometer
Polymer system for gettering hydrogen
Image control method and image control apparatus capable of compensating for disturbed TV image
Semiconductor memory apparatus for reducing current consumption
Business form
String control system
Metal compound coating on a face of a continuously longitudinally moving glass ribbon and apparatus for use in forming such coating