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Title: Method for designing gas tag compositions

For use in the manufacture of gas tags such as employed in a nuclear reactor gas tagging failure detection system, a method for designing gas tagging compositions utilizes an analytical approach wherein the final composition of a first canister of tag gas as measured by a mass spectrometer is designated as node No. 1. Lattice locations of tag nodes in multi-dimensional space are then used in calculating the compositions of a node No. 2 and each subsequent node so as to maximize the distance of each node from any combination of tag components which might be indistinguishable from another tag composition in a reactor fuel assembly. Alternatively, the measured compositions of tag gas numbers 1 and 2 may be used to fix the locations of nodes 1 and 2, with the locations of nodes 3-N then calculated for optimum tag gas composition. A single sphere defining the lattice locations of the tag nodes may be used to define approximately 20 tag nodes, while concentric spheres can extend the number of tag nodes to several hundred. 5 figures.
Inventors:
Issue Date:
OSTI Identifier:
35044
Assignee:
Kenny C. Gross, Argonne, IL (United States) PTO; SCA: 220900; 220200; PA: EDB-95:062962; SN: 95001365506
Patent Number(s):
US 5,406,605/A/
Application Number:
PAN: 8-174,227
Contract Number:
W-31109-ENG-38
Resource Relation:
Other Information: PBD: 11 Apr 1995
Research Org:
Univ. of Chicago, IL (United States)
Country of Publication:
United States
Language:
English
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; FAILED ELEMENT DETECTION; IDENTIFICATION SYSTEMS; DESIGN; GASES; CHEMICAL COMPOSITION; REACTOR LATTICES; FUEL ELEMENT FAILURE

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