METHOD FOR DETECTING AND IDENTIFICATION OF HAZARDOUS SUBSTANCE

摘要

The invention is related to a method for detection and identification of concealed substances or materials that are hazardous to humans and environment. The effecttive use of the method for detection and identification of hazardous substances, concealed by their inclusion in the masking matrix of various dielectric materials, is realized on the basis of the possibility of performing detection and identification of the hazardous substance in the matrix by means of the characteristic thermal picture of the material after thermal activating with a thermal pulse of defined geometrical parameters and energy, as said picture is an integral characteristic of the material ability to absorb the stimulating visible and infrared radiation and to transform it into a bulk or surface source of heat for the remaining part of the material, of the material ability to emit back the absorbed radiation, changing the wavelength of the incident radiation, and also of the material ability to perceive the absorbed thermal energy through thermal conductivity from the shaped-up secondary source of heat and to change its own temperature in that transitional thermal process.