INFRARED RADIATION-INTERACTIVE ARTICLE, AND METHOD OF GENERATING A TRANSIENT INFRARED RADIATION RESPONSE

摘要

An infrared radiation-interactive article (10) comprising an oxidizable metal body (18) of a radiation-interactive size and shape, with an oxidation-promoting salt (20) in contact with the metal body (18), arranged so that in exposure to ambient moisture, the metal body (18) is oxidizable to a radiation non-interactive form. The article (10) of the invention may be employed to carry out a method of generating a transient radiation response, e.g., an infrared radiation reflectance signature, or infrared radiation absorption, at a selected locus receiving radiation incident thereon, by disposing at the locus a radiation interactively-effective amount of such radiation-interactive article (10), for positional location determination applications.