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Explosives detection sensor

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A solid state electrochemical gas sensor for detecting trace amounts of explosive materials and a method of detecting such explosives. The sensor has at least two electrodes. The at least two electrodes include a first catalytic electrode and a second catalytic electrode that are dissimilar and an electrolyte disposed between the first catalytic electrode and the second catalytic electrode. The sensor detects at least one gaseous specie emitted by the explosive material. At least one of a potential difference and a current flow is generated by at least one of catalytic and electrochemical reactions of the gaseous species emitted by the explosive material on one of the first catalytic electrode, second catalytic electrode, and the electrolyte. An explosive detection system that incorporates such sensors and methods is also described.
Garzon, Fernando H. (Santa Fe, NM), Brosha, Eric L. (Los Alamos, NM), Mukundan, Rangachary (Santa Fe, NM)
The Regents of the University of California
11/ 110,278
April 19, 2005
STATEMENT REGARDING FEDERAL RIGHTS [0001] This invention was made with government support under Contract No. W-7405-ENG-36, awarded by the U.S. Department of Energy. The government has certain rights in the invention.