Method of detecting leakage of reactor core components of liquid metal cooled fast reactors
Abstract
A method of detecting the failure of a sealed non-fueled core component of a liquid-metal cooled fast reactor having an inert cover gas. A gas mixture is incorporated in the component which includes Xenon-124; under neutron irradiation, Xenon-124 is converted to radioactive Xenon-125. The cover gas is scanned by a radiation detector. The occurrence of 188 Kev gamma radiation and/or other identifying gamma radiation-energy level indicates the presence of Xenon-125 and therefore leakage of a component. Similarly, Xe-126, which transmutes to Xe-127 and Kr-84, which produces Kr-85.sup.m can be used for detection of leakage. Different components are charged with mixtures including different ratios of isotopes other than Xenon-124. On detection of the identifying radiation, the cover gas is subjected to mass spectroscopic analysis to locate the leaking component.
- Inventors:
- Issue Date:
- Research Org.:
- Hanford Engineering Development Lab., Richland, WA (United States)
- Sponsoring Org.:
- US Atomic Energy Commission (AEC)
- OSTI Identifier:
- 862880
- Patent Number(s):
- 4033813
- Application Number:
- 05/624804
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
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
- DOE Contract Number:
- AT(45-1-)2170
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1975 Oct 22
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; detecting; leakage; reactor; core; components; liquid; metal; cooled; fast; reactors; failure; sealed; non-fueled; component; liquid-metal; inert; cover; gas; mixture; incorporated; xenon-124; neutron; irradiation; converted; radioactive; xenon-125; scanned; radiation; detector; occurrence; 188; kev; gamma; identifying; radiation-energy; level; indicates; presence; similarly; xe-126; transmutes; xe-127; kr-84; produces; kr-85; detection; charged; mixtures; including; ratios; isotopes; subjected; mass; spectroscopic; analysis; locate; leaking; core component; spectroscopic analysis; neutron irradiation; energy level; liquid metal; reactor core; radiation detector; gas mixture; gamma radiation; metal cooled; cover gas; fast reactor; core components; cooled fast; mass spectroscopic; detecting leakage; kev gamma; /376/976/
Citation Formats
Holt, Fred E., Cash, Robert J., and Schenter, Robert E. Method of detecting leakage of reactor core components of liquid metal cooled fast reactors. United States: N. p., 1977.
Web.
Holt, Fred E., Cash, Robert J., & Schenter, Robert E. Method of detecting leakage of reactor core components of liquid metal cooled fast reactors. United States.
Holt, Fred E., Cash, Robert J., and Schenter, Robert E. Sat .
"Method of detecting leakage of reactor core components of liquid metal cooled fast reactors". United States. https://www.osti.gov/servlets/purl/862880.
@article{osti_862880,
title = {Method of detecting leakage of reactor core components of liquid metal cooled fast reactors},
author = {Holt, Fred E. and Cash, Robert J. and Schenter, Robert E.},
abstractNote = {A method of detecting the failure of a sealed non-fueled core component of a liquid-metal cooled fast reactor having an inert cover gas. A gas mixture is incorporated in the component which includes Xenon-124; under neutron irradiation, Xenon-124 is converted to radioactive Xenon-125. The cover gas is scanned by a radiation detector. The occurrence of 188 Kev gamma radiation and/or other identifying gamma radiation-energy level indicates the presence of Xenon-125 and therefore leakage of a component. Similarly, Xe-126, which transmutes to Xe-127 and Kr-84, which produces Kr-85.sup.m can be used for detection of leakage. Different components are charged with mixtures including different ratios of isotopes other than Xenon-124. On detection of the identifying radiation, the cover gas is subjected to mass spectroscopic analysis to locate the leaking component.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1977},
month = {Sat Jan 01 00:00:00 EST 1977}
}
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