Class / Patent application number | Description | Number of patent applications / Date published |
376257000 | Fuel assay (e.g., burnup) | 6 |
20100284504 | DEVICE AND APPARATUS FOR MEASURING THE ENRICHMENT PROFILE OF A NUCLEAR FUEL ROD - Device and apparatus for measuring the enrichment profile of a nuclear fuel rod. | 11-11-2010 |
20100310033 | METHOD TO PROCESS FISSION CHAMBER MEASUREMENT SIGNALS - A method to determine the effective masses of deposits of fissile matter, including a first measuring step to measure the count rate of deposits of fissile matter of known effective masses to form a matrix [C] | 12-09-2010 |
20110164716 | METHOD COMPRISING MEASUREMENT ON FUEL CHANNELS OF FUEL ASSEMBLIES FOR NUCLEAR BOILING WATER REACTORS - The invention concerns a method comprising measurement on a fuel channel ( | 07-07-2011 |
20110216869 | METHOD OF IMPROVING THE SPENT NUCLEAR FUEL BURNUP CREDIT - A dimensional reactivity management system that takes into account the axial burnup shape data of a nuclear fuel assembly to determine the acceptability of placement of the assembly relative to other assemblies in a storage container. | 09-08-2011 |
20120134459 | GAMMA SCANNING APPARATUS - A gamma scanning apparatus includes a moving and fixing mechanism which moves/fixes a housing to a definite position, and a rotating and moving mechanism which moves a fuel assembly vertically in addition to rotating the assembly. A gamma-ray counting circuit measures an output of a gamma-ray detector, and a data collecting/analyzing and controlling apparatus analyzes data output from the gamma-ray counting circuit, in association with data relating to the rotation and movement of the fuel assembly by the rotating and moving mechanism. The rotating and moving mechanism, after fixing the vertical position of the fuel assembly with the housing also fixed, rotates the fuel assembly through 360° with its height kept constant, and during the 360° rotation of the fuel assembly, the gamma-ray counting circuit measures either a time average of count values of the detector during the rotation or an integral value within a fixed time. | 05-31-2012 |
20160111173 | GAMMA-RAY SENSING PROBE USING CERENKOV EFFECT AND SYSTEM FOR IDENTIFYING BURNUP OF SPENT NUCLEAR FUEL ASSEMBLY USING THE SAME - Provided are a gamma-ray sensing probe using the Cerenkov effect, and a system for identifying the burnup of a spent nuclear fuel assembly using the gamma-ray sensing probes, wherein the system is established using the gamma-ray sensing probe including: an optical fiber reacting to gamma rays coming from the spent nuclear fuel assembly by the Cerenkov effect and emitting light by itself; a scatterer surrounding the optical fiber to increase light emitting efficiency of the optical fiber by the Cerenkov effect; and a collimator configured to surround the scatterer and composed of a shielding material, the collimator having a slit groove which is open in one direction, whereby the burnup of the spent nuclear fuel assembly can be accurately determined. | 04-21-2016 |