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Title: Method and apparatus for diagnosing breached fuel elements

Abstract

The invention provides an apparatus and method for diagnosing breached fuel elements in a nuclear reactor. A detection system measures the activity of isotopes from the cover gas in the reactor. A data acquisition and processing system monitors the detection system and corrects for the effects of the cover-gas clean up system on the measured activity and further calculates the derivative curve of the corrected activity as a function of time. A plotting system graphs the derivative curve, which represents the instantaneous release rate of fission gas from a breached fuel element. 8 figs.

Inventors:
; ;
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
OSTI Identifier:
6823763
Patent Number(s):
6020997
Assignee:
ANL; ERA-14-000616; EDB-88-183589
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
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DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FAILED ELEMENT MONITORS; DESIGN; ACTIVITY LEVELS; DATA ACQUISITION SYSTEMS; DETECTION; FAILED ELEMENT DETECTION; FUEL ELEMENT FAILURE; HOT GAS CLEANUP; INVENTIONS; ACCIDENTS; MEASURING INSTRUMENTS; MONITORS; PURIFICATION; REACTOR ACCIDENTS; 220300* - Nuclear Reactor Technology- Fuel Elements; 220400 - Nuclear Reactor Technology- Control Systems

Citation Formats

Gross, K C, Lambert, J D.B., and Nomura, S. Method and apparatus for diagnosing breached fuel elements. United States: N. p., 1987. Web.
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Gross, K C, Lambert, J D.B., & Nomura, S. Method and apparatus for diagnosing breached fuel elements. United States.
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Gross, K C, Lambert, J D.B., and Nomura, S. Mon . "Method and apparatus for diagnosing breached fuel elements". United States.
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@article{osti_6823763,
title = {Method and apparatus for diagnosing breached fuel elements},
author = {Gross, K C and Lambert, J D.B. and Nomura, S},
abstractNote = {The invention provides an apparatus and method for diagnosing breached fuel elements in a nuclear reactor. A detection system measures the activity of isotopes from the cover gas in the reactor. A data acquisition and processing system monitors the detection system and corrects for the effects of the cover-gas clean up system on the measured activity and further calculates the derivative curve of the corrected activity as a function of time. A plotting system graphs the derivative curve, which represents the instantaneous release rate of fission gas from a breached fuel element. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 02 00:00:00 EST 1987},
month = {Mon Mar 02 00:00:00 EST 1987}
}
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