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Title: Rapid scanning system for fuel drawers

Abstract

A nondestructive method for uniqely distinguishing among and quantifying the mass of individual fuel plates in situ in fuel drawers utilized in nuclear reactors is described. The method is both rapid and passive, eliminating the personnel hazard of the commonly used irradiation techniques which require that the analysis be performed in proximity to an intense neutron source such as a reactor. In the present technique, only normally decaying nuclei are observed. This allows the analysis to be performed anywhere. This feature, combined with rapid scanning of a given fuel drawer (in approximately 30 s), and the computer data analysis allows the processing of large numbers of fuel drawers efficiently in the event of a loss alert.

Inventors:
 [1];  [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
863997
Patent Number(s):
4291227
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rapid; scanning; fuel; drawers; nondestructive; method; uniqely; distinguishing; quantifying; mass; individual; plates; situ; utilized; nuclear; reactors; described; passive; eliminating; personnel; hazard; commonly; irradiation; techniques; require; analysis; performed; proximity; intense; neutron; source; reactor; technique; normally; decaying; nuclei; observed; allows; feature; combined; drawer; approximately; 30; computer; data; processing; efficiently; event; loss; alert; nondestructive method; individual fuel; data analysis; nuclear reactors; nuclear reactor; neutron source; dual fuel; fuel plate; fuel drawers; fuel plates; intense neutron; /250/376/976/

Citation Formats

Caldwell, John T, Fehlau, Paul E, and France, Stephen W. Rapid scanning system for fuel drawers. United States: N. p., 1981. Web.
Caldwell, John T, Fehlau, Paul E, & France, Stephen W. Rapid scanning system for fuel drawers. United States.
Caldwell, John T, Fehlau, Paul E, and France, Stephen W. Thu . "Rapid scanning system for fuel drawers". United States. https://www.osti.gov/servlets/purl/863997.
@article{osti_863997,
title = {Rapid scanning system for fuel drawers},
author = {Caldwell, John T and Fehlau, Paul E and France, Stephen W},
abstractNote = {A nondestructive method for uniqely distinguishing among and quantifying the mass of individual fuel plates in situ in fuel drawers utilized in nuclear reactors is described. The method is both rapid and passive, eliminating the personnel hazard of the commonly used irradiation techniques which require that the analysis be performed in proximity to an intense neutron source such as a reactor. In the present technique, only normally decaying nuclei are observed. This allows the analysis to be performed anywhere. This feature, combined with rapid scanning of a given fuel drawer (in approximately 30 s), and the computer data analysis allows the processing of large numbers of fuel drawers efficiently in the event of a loss alert.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}