Abstract

The possibility of using the photo-acoustic method to study the process of laser radiation action on fibres has been demonstrated. For groups of synthetic, artificial, and natural fibres, basic stages and energy thresholds have been determined: for proportionality, structural rearrangements, radiation strength, and destruction under the action of radiation from a CO2 laser. A classification of fibres with respect to resistance to the action of laser radiation has been made; these fibres have been characterized by energy thresholds of radiation resistance and destruction thresholds, and also by the type of processes taking place.

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